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/clk/meson/g12a.c b/drivers/clk/meson/g12a.c
index c540bb0..bf2f357 100644
--- a/drivers/clk/meson/g12a.c
+++ b/drivers/clk/meson/g12a.c
@@ -15,6 +15,7 @@
 #include <syscon.h>
 #include <div64.h>
 #include <dt-bindings/clock/g12a-clkc.h>
+#include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/kernel.h>