pinctrl: intel: Update header block to reflect direct dependencies

Update header inclusion block to reflect all direct dependencies
that are being involved in pinctrl-intel.h.

Signed-off-by: Andy Shevchenko <[e-mail]>
Acked-by: Mika Westerberg <[e-mail]>

drivers/pinctrl/intel/pinctrl-intel.h

···
 #ifndef PINCTRL_INTEL_H
 #define PINCTRL_INTEL_H
 
+#include <linux/bits.h>
+#include <linux/compiler_types.h>
 #include <linux/gpio/driver.h>
 #include <linux/irq.h>
+#include <linux/kernel.h>
 #include <linux/pm.h>
+#include <linux/pinctrl/pinctrl.h>
 #include <linux/spinlock_types.h>
 
-struct pinctrl_pin_desc;
 struct platform_device;
 struct device;