core/buildscripts: Added ARM support to BITS detection.

Added support for armv6/armv7/aarch32/aarch64 BITS detection
to build scripts.

core/c/jcpuid/build.sh

@@ -31,12 +31,21 @@ if [ -z $BITS ]; then
     BITS=32
   elif test "${UNAME#*i686}" != "i686"; then
     BITS=32
+  elif test "${UNAME#*armv6}" != "armv6"; then
+    BITS=32
+  elif test "${UNAME#*armv7}" != "armv7"; then
+    BITS=32
+  elif test "${UNAME#*aarch32}" != "aarch32"; then
+    BITS=32
+  elif test "${UNAME#*aarch64}" != "aarch64"; then
+    BITS=64
   else
+ 
     echo "Unable to detect default setting for BITS variable"
     exit
   fi
 
-  printf "\aBITS variable not set, defaulting to $BITS\n\a" >&2
+  printf "\aBITS variable not set, $BITS bit system detected\n\a" >&2
 fi