feat(fvp): support AArch32 booting with handoff

Enable AArch32 SP_MIN booting on the FVP platform using Firmware
Handoff. Update plat_arm_sp_min_early_platform_setup() to parse boot
arguments passed via the Firmware Handoff framework.

Also, adjust the maximum BL32 size calculation to use
PLAT_ARM_FW_HANDOFF_SIZE when TRANSFER_LIST is enabled.

Change-Id: I82032b1cebf8b37ff24dde4f2d07f7aaede33eb6
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
2 files changed