asm-generic: make bitops.h usable
asm-generic: make bitops.h usable

bitops.h apparently suffered from some level of bitrot, it
was missing the smp_mb__{before,after}_clear_bit functions,
and included other headers in an invalid order.

This changes the file so that new architectures can use
it out of the box.

Signed-off-by: Remis Lima Baima <22425bfde962d4c1a500483b3b69a5e70a632694@googlemail.com>
Signed-off-by: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs