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/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c
index 1d2c979..f82e6d3 100644
--- a/drivers/mailbox/tegra-hsp.c
+++ b/drivers/mailbox/tegra-hsp.c
@@ -10,6 +10,7 @@
 #include <dm.h>
 #include <mailbox-uclass.h>
 #include <dt-bindings/mailbox/tegra186-hsp.h>
+#include <linux/bitops.h>
 
 #define TEGRA_HSP_INT_DIMENSIONING		0x380
 #define TEGRA_HSP_INT_DIMENSIONING_NSI_SHIFT	16