fix(rdv3): correctly define plat_mboot_measure_key()

The function is declared with 2 const parameters, however it is defined
without the const qualifiers, leading to compiler warnings.

Change-Id: Ibe021336ea50e2028799bd6b1f0c5b513490185d
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
1 file changed