fix(tftf): command id passed to realm to compare FPU registers

This fixes the command id passed to Realm to compare FPU/SIMD regs.
And also adds a missing break statement in Realm payload main entry
function for command REALM_REQ_FPU_CMP_CMD.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Iaf7073475291785990a55675746968b291fdf507
2 files changed