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/altera/clk-agilex.h b/drivers/clk/altera/clk-agilex.h
index d93328e..cd68ebc 100644
--- a/drivers/clk/altera/clk-agilex.h
+++ b/drivers/clk/altera/clk-agilex.h
@@ -6,6 +6,10 @@
 #ifndef	_CLK_AGILEX_
 #define	_CLK_AGILEX_
 
+#ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+#endif
+
 #define CM_REG_READL(plat, reg)				\
 	readl((plat)->regs + (reg))