Fix unintended reversion of recent CortexA53 changes
@@ -3154,7 +3154,7 @@ is a big desktop or server with abundant cache rather than a phone or embedded d
#define SGEMM_DEFAULT_UNROLL_M 8
#define SGEMM_DEFAULT_UNROLL_N 8
-#define DGEMM_DEFAULT_UNROLL_M 8
+#define DGEMM_DEFAULT_UNROLL_M 4
#define DGEMM_DEFAULT_UNROLL_N 4
#define CGEMM_DEFAULT_UNROLL_M 8
