feat(imx9): add full system power control option

Add an optional build-time configuration to enable full system
shutdown and reset control through SCMI.

By default, only logical machine (cluster-le

feat(imx9): add full system power control option

Add an optional build-time configuration to enable full system
shutdown and reset control through SCMI.

By default, only logical machine (cluster-level) power-off and
reset are performed. When the SYS_PWR_FULL_CTRL option is set,
the PSCI implementation uses the full system power control
commands instead, allowing a complete system shutdown and reset.

Tested on iMX95 based modules.

Change-Id: I56b31f9b91def31784857f5a299c69f68db706a4
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>

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feat(scmi): add i.MX9 SCMI vendor CPU protocol

Add i.MX9 SCMI vendor specific CPU protocol

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.c

feat(scmi): add i.MX9 SCMI vendor CPU protocol

Add i.MX9 SCMI vendor specific CPU protocol

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: Icc81bf9f4a32c08e4a3c358b1cf561ca4345a431

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