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/board/nvidia/p2371-2180/p2371-2180.c b/board/nvidia/p2371-2180/p2371-2180.c
index 0a988cb..4aeec47 100644
--- a/board/nvidia/p2371-2180/p2371-2180.c
+++ b/board/nvidia/p2371-2180/p2371-2180.c
@@ -10,6 +10,7 @@
 #include <i2c.h>
 #include <log.h>
 #include <net.h>
+#include <linux/bitops.h>
 #include <linux/libfdt.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
diff --git a/board/nvidia/p3450-0000/p3450-0000.c b/board/nvidia/p3450-0000/p3450-0000.c
index f4212ab..45f9bac 100644
--- a/board/nvidia/p3450-0000/p3450-0000.c
+++ b/board/nvidia/p3450-0000/p3450-0000.c
@@ -8,6 +8,7 @@
 #include <common.h>
 #include <fdtdec.h>
 #include <i2c.h>
+#include <linux/bitops.h>
 #include <linux/libfdt.h>
 #include <pca953x.h>
 #include <asm/arch-tegra/cboot.h>