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/video/stm32/stm32_ltdc.c b/drivers/video/stm32/stm32_ltdc.c
index ff48fd7..2f3427a 100644
--- a/drivers/video/stm32/stm32_ltdc.c
+++ b/drivers/video/stm32/stm32_ltdc.c
@@ -18,6 +18,7 @@
 #include <asm/arch/gpio.h>
 #include <dm/device-internal.h>
 #include <dm/device_compat.h>
+#include <linux/bitops.h>
 
 struct stm32_ltdc_priv {
 	void __iomem *regs;