refactor(fvp_r): remove duplicated macro definitions

The system counter macros are defined duplicatedly in the header file.
As the macros must be defined before arm_def.h, this patch removes the
redundant definitions afterwards.

Change-Id: Id74a8ef1b9cec4a978366b6db69981cfc30dffb6
Signed-off-by: Leo Yan <leo.yan@arm.com>
1 file changed