chore(fvp): bump OP-TEE version to 4.5.0

Update OP-TEE to version 4.5.0 in fvp_utils.sh to align with the latest
OP-TEE release.

The OP-TEE dispatcher (OPTEED) assumes the split binary format of OP-TEE
is being used (tee-header_v2.bin, tee-pager_v2.bin). The existing test
setup uses the raw binary alone. OPTEED warns at runtime about an
unexpected header format.

Update the FVP CI boot flow to support this bootflow:

* In fvp-optee, fetch and archive the split binaries.
* In fvp-fip.tftf+bl32, pass BL32_EXTRA1 and, if available, BL32_EXTRA2
  to build_fip.

Change-Id: Ia415223562521429ee81e6e2ab155b0a96c16622
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
3 files changed