mips: octeon: Move CVMX_SYNC from octeon_ddr.h to cvmx-regs.h

This makes is easier to use this macro from non-DDR related files.
Signed-off-by: NStefan Roese <sr@denx.de>

arch/mips/mach-octeon/include/mach/cvmx-regs.h

@@ -68,6 +68,7 @@
 #define CVMX_POP(result, input)						\
 	asm("pop %[rd],%[rs]" : [rd] "=d"(result) : [rs] "d"(input))
 
+#define CVMX_SYNC   asm volatile("sync\n" : : : "memory")
 #define CVMX_SYNCW  asm volatile("syncw\nsyncw\n" : : : "memory")
 #define CVMX_SYNCS  asm volatile("syncs\n" : : : "memory")
 #define CVMX_SYNCWS asm volatile("syncws\n" : : : "memory")

arch/mips/mach-octeon/include/mach/octeon_ddr.h

@@ -120,8 +120,6 @@ static inline int ddr_verbose(void)
 #define CVMX_TMP_STR(x) CVMX_TMP_STR2(x)
 #define CVMX_TMP_STR2(x) #x
 
-#define CVMX_SYNC asm volatile ("sync" : : : "memory")
-
 #define CVMX_CACHE(op, address, offset)					\
 	asm volatile ("cache " CVMX_TMP_STR(op) ", "			\
 		      CVMX_TMP_STR(offset) "(%[rbase])"			\