Merge changes from topic "rmm-lfa" into integration

* changes:
feat(arm): handle RMM ep_info during LFA
feat(lfa): add helper to check LFA prime completion status
feat(lfa): enable LFA of RMM

Merge changes from topic "rmm-lfa" into integration

* changes:
feat(arm): handle RMM ep_info during LFA
feat(lfa): add helper to check LFA prime completion status
feat(lfa): enable LFA of RMM
chore(lfa): use standard int return type for prime/activate callbacks
feat(rmmd): add warm reset helpers for primary and secondary CPUs

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chore(lfa): use standard int return type for prime/activate callbacks

Replace `int32_t` with `int` for `component_prime_fn` and
`component_activate_fn` typedefs, along with their implementations
in

chore(lfa): use standard int return type for prime/activate callbacks

Replace `int32_t` with `int` for `component_prime_fn` and
`component_activate_fn` typedefs, along with their implementations
in BL31 and RMM LFA services. This aligns with common convention
for function return types and avoids unnecessary use of fixed-width
types where a native int is sufficient

Change-Id: Id22e93a554260b22e36b59baeac2cbb1b4646727
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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Merge changes from topic "mb/lfa-core-work" into integration

* changes:
docs(maintainers): add myself as code owner for LFA service
docs(lfa): update porting guide with LFA platform APIs
feat(

Merge changes from topic "mb/lfa-core-work" into integration

* changes:
docs(maintainers): add myself as code owner for LFA service
docs(lfa): update porting guide with LFA platform APIs
feat(lfa): add LFA holding pen logic
feat(lfa): add initial implementation for LFA_ACTIVATE
feat(lfa): add initial implementation for LFA_PRIME
feat(fvp): implement platform API for load and auth image
feat(lfa): implement LFA_CANCEL SMC
feat(fvp): implement platform API for LFA cancel operation
feat(lfa): implement LFA_GET_INVENTORY SMC
feat(fvp): implement platform API for LFA activation pending check
feat(lfa): implement LFA_GET_INFO SMC and integrate LFA build
feat(fvp): initialize LFA component activators in platform layer
feat(rmm): add placeholder activator callbacks for LFA
feat(bl31): add placeholder activator implementation for LFA
feat(lfa): add activation handler interface for component activation
feat(fvp): implement LFA get components API
feat(lfa): create LFA SMC handler template

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feat(lfa): implement LFA_GET_INVENTORY SMC

This implementation primarily retrieves activation-related flags for
a given fw_seq_id, including whether the firmware is activation
capable, whether an up

feat(lfa): implement LFA_GET_INVENTORY SMC

This implementation primarily retrieves activation-related flags for
a given fw_seq_id, including whether the firmware is activation
capable, whether an update is pending activation, whether it resets
the CPU during activation, whether CPU rendezvous is required, and the
firmware's UUID.
To support this, a platform API is called to determine whether an
update is available for the specified fw_seq_id, indicating its
pending activation status.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I6e702a8b313386f5668027386845ff2dae9328e7

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feat(bl31): add placeholder activator implementation for LFA

Introduce the BL31 component's activator structure with stub
implementations for the 'prime' and 'activate' callbacks.

Both callbacks cu

feat(bl31): add placeholder activator implementation for LFA

Introduce the BL31 component's activator structure with stub
implementations for the 'prime' and 'activate' callbacks.

Both callbacks currently return LFA_WRONG_STATE, indicating that
activation is not supported or allowed from BL31 in this context.

This activator is registered via get_bl31_activator(), allowing
the platform layer to wire it into the LFA framework.

Change-Id: I4279996b218d558a45cd99d5840f0e9f8ee97f90
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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