fix(rmm): rename RmiFeature type definitions

This patch renames RmiFeature type definitions
to RMI_FEATURE_FALSE and RMI_FEATURE_TRUE as
per RMM Specification 1.0-eac1. No functional
modifications are made.

Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
Change-Id: I49bccd1246e50fd1da060a32888ac6a5781aedcd
diff --git a/lib/smc/include/smc-rmi.h b/lib/smc/include/smc-rmi.h
index f215578..8ddeb3d 100644
--- a/lib/smc/include/smc-rmi.h
+++ b/lib/smc/include/smc-rmi.h
@@ -127,8 +127,8 @@
 #define RMI_VALID_NS		U(4)
 
 /* RmiFeature enumerations */
-#define RMI_NOT_SUPPORTED			UL(0)
-#define RMI_SUPPORTED				UL(1)
+#define RMI_FEATURE_FALSE	UL(0)
+#define RMI_FEATURE_TRUE	UL(1)
 
 /* RmiFeatureRegister0 format */
 #define RMM_FEATURE_REGISTER_0_INDEX		UL(0)