Merge "refactor(plat/synquacer): update PSCI system_off handling" into integration

refactor(plat/synquacer): update PSCI system_off handling

SynQuacer SoC contains a Cortex-M3 System Control Processor(SCP)
which manages system power.
This commit modifies the PSCI system_off handli

refactor(plat/synquacer): update PSCI system_off handling

SynQuacer SoC contains a Cortex-M3 System Control Processor(SCP)
which manages system power.
This commit modifies the PSCI system_off handling to call SCMI,
same as other PSCI calls. System power-off is done by turing off
the ATX power supply through GPIO, this operation is transferred
to SCP.

Note that this commit modifies only the SCMI case, obsolete SCPI
implementation is not updated.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Change-Id: I6c1009e67cccd1eb5d14c338c3df9103d63709dd

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Merge pull request #1856 from masahisak/synquacer-scmi-support

plat/synquacer: enable SCMI support

plat/synquacer: enable SCMI support

Enable the SCMI protocol support in SynQuacer platform.
Aside from power domain, system power and apcore management protocol,
this commit adds the vendor specific

plat/synquacer: enable SCMI support

Enable the SCMI protocol support in SynQuacer platform.
Aside from power domain, system power and apcore management protocol,
this commit adds the vendor specific protocol(0x80).
This vendor specific protocol is used to get the dram mapping information
from SCP.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>

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