fix(tests): FVP S-EL0 tests

Recent changes removed the use of uart as test control mechanism for FVP
tests that run both the hypervsior and SPMC. Updating VHE builds to
remove dependence on uart as hftest control mechanism.

Signed-off-by: Raghu Krishnamurthy <raghu.ncstate@gmail.com>
Change-Id: Ie7bf95ecf1cad1ab7a511608e5741a72bb35baf1
1 file changed