rename MIPS_DSPR2 to DSPR2 for consistency

util/cpuid.c

Index: util/cpuid.c
diff --git a/util/cpuid.c b/util/cpuid.c
index 322cdf611cf69c6b8e494934a59aab3de6a33d71..94e245b11d080eb0f56db7ecb656da6a407b76f5 100644
--- a/util/cpuid.c
+++ b/util/cpuid.c
@@ -66,8 +66,8 @@ int main(int argc, const char* argv[]) {
     printf("Has NEON %x\n", has_neon);
   }
   if (has_mips) {
-    int has_mips_dspr2 = TestCpuFlag(kCpuHasMIPS_DSPR2);
-    printf("Has MIPS DSPR2 %x\n", has_mips_dspr2);
+    int has_dspr2 = TestCpuFlag(kCpuHasDSPR2);
+    printf("Has DSPR2 %x\n", has_dspr2);
   }
   if (has_x86) {
     int has_sse2 = TestCpuFlag(kCpuHasSSE2);