switch aw & cw to target ARMv7

@@ -758,12 +758,12 @@
          */
 #if defined(AW_TARGET_arm)
         if (as64) {
                 return (error("no 64-bit aw target for arm"));
         } else {
-                newae(as, "-march=armv6k");
-                newae(as, "-mfpu=vfpv2");
+                newae(as, "-march=armv7-a");
+                newae(as, "-mfpu=vfpv3-d16");
                 newae(as, "-mfloat-abi=hard");
         }
 #endif
 
         if (srcfile == NULL)