gpio: generic: Don't use 'proxy' headers

Update header inclusions to follow IWYU (Include What You Use)
principle.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260226092023.4096921-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

drivers/gpio/gpio-mmio.c

@@ -42,18 +42,16 @@ o        `                     ~~~~\___/~~~~    ` controller in FPGA is ,.`
 
 #include <linux/bitops.h>
 #include <linux/cleanup.h>
-#include <linux/compiler.h>
 #include <linux/err.h>
-#include <linux/init.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
+#include <linux/limits.h>
 #include <linux/log2.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/property.h>
-#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 

include/linux/gpio/generic.h

@@ -3,9 +3,15 @@
 #ifndef __LINUX_GPIO_GENERIC_H
 #define __LINUX_GPIO_GENERIC_H
 
+#include <linux/bits.h>
+#include <linux/bug.h>
 #include <linux/cleanup.h>
-#include <linux/gpio/driver.h>
+#include <linux/container_of.h>
+#include <linux/errno.h>
 #include <linux/spinlock.h>
+#include <linux/types.h>
+
+#include <linux/gpio/driver.h>
 
 struct device;