common: Drop linux/delay.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/power/regulator/pbias_regulator.c b/drivers/power/regulator/pbias_regulator.c
index db8c5a9..28a9a14 100644
--- a/drivers/power/regulator/pbias_regulator.c
+++ b/drivers/power/regulator/pbias_regulator.c
@@ -8,6 +8,7 @@
 #include <errno.h>
 #include <dm.h>
 #include <log.h>
+#include <linux/delay.h>
 #include <linux/err.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index b959c46..7dcb317 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -9,6 +9,7 @@
 #include <dm.h>
 #include <log.h>
 #include <dm/uclass-internal.h>
+#include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 
diff --git a/drivers/power/regulator/regulator_common.c b/drivers/power/regulator/regulator_common.c
index 637db02..16d9412 100644
--- a/drivers/power/regulator/regulator_common.c
+++ b/drivers/power/regulator/regulator_common.c
@@ -7,6 +7,7 @@
 #include "regulator_common.h"
 #include <common.h>
 #include <log.h>
+#include <linux/delay.h>
 #include <power/regulator.h>
 
 int regulator_common_ofdata_to_platdata(struct udevice *dev,
diff --git a/drivers/power/regulator/s2mps11_regulator.c b/drivers/power/regulator/s2mps11_regulator.c
index 67d1f96..a6b4f15 100644
--- a/drivers/power/regulator/s2mps11_regulator.c
+++ b/drivers/power/regulator/s2mps11_regulator.c
@@ -9,6 +9,7 @@
 #include <errno.h>
 #include <dm.h>
 #include <i2c.h>
+#include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 #include <power/s2mps11.h>
diff --git a/drivers/power/regulator/stpmic1.c b/drivers/power/regulator/stpmic1.c
index 1e3f96f..3e342f4 100644
--- a/drivers/power/regulator/stpmic1.c
+++ b/drivers/power/regulator/stpmic1.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
+#include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 #include <power/stpmic1.h>
diff --git a/drivers/power/regulator/tps65090_regulator.c b/drivers/power/regulator/tps65090_regulator.c
index 6dfec89..9e45627 100644
--- a/drivers/power/regulator/tps65090_regulator.c
+++ b/drivers/power/regulator/tps65090_regulator.c
@@ -7,6 +7,7 @@
 #include <dm.h>
 #include <errno.h>
 #include <log.h>
+#include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 #include <power/tps65090.h>
diff --git a/drivers/power/regulator/tps65941_regulator.c b/drivers/power/regulator/tps65941_regulator.c
index 3f8be6c..150c72d 100644
--- a/drivers/power/regulator/tps65941_regulator.c
+++ b/drivers/power/regulator/tps65941_regulator.c
@@ -12,6 +12,7 @@
 #include <dm.h>
 #include <i2c.h>
 #include <log.h>
+#include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 #include <power/tps65941.h>