refactor(lib/smc): Update RIPAS defs to align with RMI header

The ripas defintions internally used in the code is renamed
to have RIPAS_ prefixes to avoid conflict with the RMI header.

Signed-off-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Change-Id: Iac7858a2ca0d51978673980acc90ab2daa48296b