GitLab

Use single 64b register for the return value instead of two 32b.
Report an error if caller requested larger than than 64b random
number in a single SMC call.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Change-Id: Ib8756cd3c0808b78c359f90c6f6913f7d16ac360
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/boot/atf/+/33280

Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>