fix(arm): correct the RESET_TO_BL31 x1 handoff arg

Use the designated macro to accurately set the signature within the
parameters transferred from BL33 to the non-secure payload.

Change-Id: Id91319121a70b2c72f8489450f191ca4f129cfcb
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
1 file changed