x86_64: Fix wrong gcc check in bitops.h

gcc 5.0 will likely not have the constraint problem
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/asm-x86_64/bitops.h

@@ -7,7 +7,7 @@
 
 #include <asm/alternative.h>
 
-#if __GNUC__ < 4 || __GNUC_MINOR__ < 1
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
 /* Technically wrong, but this avoids compilation errors on some gcc
    versions. */
 #define ADDR "=m" (*(volatile long *) addr)