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/drivers/sysreset/sysreset_sti.c b/drivers/sysreset/sysreset_sti.c
index 9996716..3482d2a 100644
--- a/drivers/sysreset/sysreset_sti.c
+++ b/drivers/sysreset/sysreset_sti.c
@@ -10,6 +10,7 @@
 #include <syscon.h>
 #include <sysreset.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
 
 DECLARE_GLOBAL_DATA_PTR;