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/watchdog/designware_wdt.c b/drivers/watchdog/designware_wdt.c
index 1024a04..12f09a7 100644
--- a/drivers/watchdog/designware_wdt.c
+++ b/drivers/watchdog/designware_wdt.c
@@ -10,6 +10,7 @@
 #include <wdt.h>
 #include <asm/io.h>
 #include <asm/utils.h>
+#include <linux/bitops.h>
 
 #define DW_WDT_CR	0x00
 #define DW_WDT_TORR	0x04
diff --git a/drivers/watchdog/mt7621_wdt.c b/drivers/watchdog/mt7621_wdt.c
index 3886614..1cd8866 100644
--- a/drivers/watchdog/mt7621_wdt.c
+++ b/drivers/watchdog/mt7621_wdt.c
@@ -12,6 +12,7 @@
 #include <common.h>
 #include <dm.h>
 #include <wdt.h>
+#include <linux/bitops.h>
 #include <linux/io.h>
 
 DECLARE_GLOBAL_DATA_PTR;
diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index b3c597e..a636cff 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c
@@ -11,6 +11,7 @@
 #include <hang.h>
 #include <wdt.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
 
 #define MTK_WDT_MODE			0x00
 #define MTK_WDT_LENGTH			0x04
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 581e1f1..d33e2ac 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -17,6 +17,7 @@
 #include <clk.h>
 #include <log.h>
 #include <wdt.h>
+#include <linux/bitops.h>
 #include <linux/kernel.h>
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
diff --git a/drivers/watchdog/stm32mp_wdt.c b/drivers/watchdog/stm32mp_wdt.c
index 2d509a0..2d8bfc0 100644
--- a/drivers/watchdog/stm32mp_wdt.c
+++ b/drivers/watchdog/stm32mp_wdt.c
@@ -10,6 +10,7 @@
 #include <syscon.h>
 #include <wdt.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
 #include <linux/iopoll.h>
 
 /* IWDG registers */