Add __inline__ to INLINE definition.

When using 'always_inline' 'inline' should be specified as well.

Thanks to Digit for identifying this:
https://chromiumcodereview.appspot.com/14820003/

Change-Id: If1647fac91b85ecabe6d3cd04290d5c08c5a11ea

build/make/configure.sh

@@ -1179,7 +1179,7 @@ EOF
     check_cc <<EOF && INLINE="inline"
     static inline function() {}
 EOF
-    check_cc <<EOF && INLINE="__attribute__((always_inline))"
+    check_cc <<EOF && INLINE="__inline__ __attribute__((always_inline))"
     static __attribute__((always_inline)) function() {}
 EOF