common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-omap2/abb.c b/arch/arm/mach-omap2/abb.c
index 108c935..722e6db 100644
--- a/arch/arm/mach-omap2/abb.c
+++ b/arch/arm/mach-omap2/abb.c
@@ -13,6 +13,7 @@
 #include <asm/arch/clock.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
+#include <linux/bitops.h>
 
 __weak s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb)
 {