arm: refactor RESET_TO_BL31 handoff config

Integration of `tlc` into the build flow has been improved to
provide greater flexibility in creating the TL binary and specifying the
dtb offset. Modify the test configuration to accommodate these changes.

Change-Id: Ib48bbdbd0317b9c537f80a11950b708aa71fe9fe
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
1 file changed