soc/intel/alderlake: Add ADL-P 4+4 with 28W TDP

soc/intel/alderlake: Add ADL-P 4+4 with 28W TDP

Add the 28W TDP version of the ADL-P with MCHID 0x4629.

Verified that all 28W SoCs have the same PL1/PL2 defined
in Intel document #655258 "12th Generation Intel Core
Processors Datasheet, Volume 1 of 2".

Fixes the error seen in coreboot log:
[ERROR] unknown SA ID: 0x4629, skipped power Limit Configuration

Change-Id: Iad676f083dfd1cceb4df9435d467dc0f31a63f80
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74116
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>