src/cpu/ppc/vm/vm_version_ppc.cpp

rev 13391 : Fix other issues pointed by Martin Doerr.

http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2017-August/026899.html

Also took this chance to remove 1 register usage on squaretolen.

*** 256,265 ****
--- 256,273 ----
      FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
      FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
      FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
    }
  
+ #if defined(VM_LITTLE_ENDIAN)
+   if (FLAG_IS_DEFAULT(UseSquareToLenIntrinsic)) {
+     UseSquareToLenIntrinsic = true;
+   }
+   if (FLAG_IS_DEFAULT(UseMulAddIntrinsic)) {
+     UseMulAddIntrinsic = true;
+   }
+ #endif
    if (FLAG_IS_DEFAULT(UseMultiplyToLenIntrinsic)) {
      UseMultiplyToLenIntrinsic = true;
    }
    if (FLAG_IS_DEFAULT(UseMontgomeryMultiplyIntrinsic)) {
      UseMontgomeryMultiplyIntrinsic = true;