drivers: net: xgene: Don't use "proxy" headers

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

In this case replace *gpio.h, which are subject to remove by the GPIOLIB
subsystem, with the respective headers that are being used by the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250224120037.3801609-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: andy-shev

drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c

@@ -6,8 +6,14 @@
  *	    Keyur Chudgar <kchudgar@apm.com>
  */
 
-#include <linux/of_gpio.h>
-#include <linux/gpio.h>
+#include <linux/acpi.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
 #include "xgene_enet_main.h"
 #include "xgene_enet_hw.h"
 #include "xgene_enet_xgmac.h"