NFC: nfcmrvl: drop duplicate header gpio.h

Drop duplicate header gpio.h from nfcmrvl/spi.c.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/nfc/nfcmrvl/spi.c

@@ -26,7 +26,6 @@
 #include <net/nfc/nci.h>
 #include <net/nfc/nci_core.h>
 #include <linux/spi/spi.h>
-#include <linux/gpio.h>
 #include "nfcmrvl.h"
 
 #define SPI_WAIT_HANDSHAKE	1