switch aw & cw to target ARMv7

*** 411,421 ****
          { "v9b",        (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
          { "sparc",      SS12, { "-mcpu=v9", "-mv8plus" } },
          { "sparcvis",   SS12, { "-mcpu=ultrasparc", "-mvis" } },
          { "sparcvis2",  SS12, { "-mcpu=ultrasparc3", "-mvis" } }
  #elif defined(CW_TARGET_arm)
!         { "generic",    SS12, { "-march=armv6", "-mfpu=vfp", "-mhard-float" } }
  #else
  #error Unknown CW_TARGET
  #endif
  };
  
--- 411,421 ----
          { "v9b",        (SS11|M64), { "-m64", "-mcpu=ultrasparc3", "-mvis" } },
          { "sparc",      SS12, { "-mcpu=v9", "-mv8plus" } },
          { "sparcvis",   SS12, { "-mcpu=ultrasparc", "-mvis" } },
          { "sparcvis2",  SS12, { "-mcpu=ultrasparc3", "-mvis" } }
  #elif defined(CW_TARGET_arm)
!         { "generic",    SS12, { "-march=armv7-a", "-mfpu=vfpv3-d16", "-mhard-float" } }
  #else
  #error Unknown CW_TARGET
  #endif
  };