feat(rme): add dev mem map/unmap tests

- Add tests for RMI_DEV_MEM_MAP and
RMI_DEV_MEM_UNMAP commands as per RMM Specification 1.1-alp12.
- Add RNDR and RNDRRS registers' definitions.
- Redefine RNDR and RNDRRS read functions as:
DEFINE_RENAME_SYSREG_READ_FUNC(rndr, RNDR)
DEFINE_RENAME_SYSREG_READ_FUNC(rndrrs, RNDRRS)

Change-Id: Ieecc41dd6d3011bb63101bc38d527a8f57e0ef4a
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index ed705bf..f562018 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -483,8 +483,8 @@
 }
 
 /* Armv8.5 FEAT_RNG Registers */
-DEFINE_SYSREG_READ_FUNC(rndr)
-DEFINE_SYSREG_READ_FUNC(rndrrs)
+DEFINE_RENAME_SYSREG_READ_FUNC(rndr, RNDR)
+DEFINE_RENAME_SYSREG_READ_FUNC(rndrrs, RNDRRS)
 
 /* GICv3 System Registers */
 DEFINE_RENAME_SYSREG_RW_FUNCS(icc_sre_el1, ICC_SRE_EL1)