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/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 516c14e..a9f54f6 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -109,6 +109,8 @@
 #define ARC_AUX_SUBSYS_BUILD	0xF0
 
 #ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+
 /* Accessors for auxiliary registers */
 #define read_aux_reg(reg)	__builtin_arc_lr(reg)