jammy-amd64-tf-a-build: update GCC to 12.3.Rel1

This patch updates the AArch32 bare-metal target (arm-none-eabi)
and AArch64 ELF bare-metal target (aarch64-none-elf) toolchains
to the most recent version (12.3.Rel1).

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I861a80297da984579443eb8627466f4a21fcdea6
1 file changed