gpio: uniphier: include <linux/bits.h> instead of <linux/bitops.h>

The reason of including <linux/bitops.h> here is just for BIT() and
GENMASK macros.

Since commit 8bd9cb51 ("locking/atomics, asm-generic: Move some
macros from <linux/bitops.h> to a new <linux/bits.h> file"),
<linux/bits.h> is enough for such compile-time macros.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-uniphier.c

@@ -12,7 +12,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/bitops.h>
+#include <linux/bits.h>
 #include <linux/gpio/driver.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>