[media] usb/gspca: use IS_ENABLED() macro

replace:
 #if defined(CONFIG_INPUT) || \
     defined(CONFIG_INPUT_MODULE)
with:
 #if IS_ENABLED(CONFIG_INPUT)
This change was made for: CONFIG_INPUT

Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h
index 352317d..5559932 100644
--- a/drivers/media/usb/gspca/gspca.h
+++ b/drivers/media/usb/gspca/gspca.h
@@ -138,7 +138,7 @@
 	cam_reg_op get_register;
 #endif
 	cam_ident_op get_chip_ident;
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+#if IS_ENABLED(CONFIG_INPUT)
 	cam_int_pkt_op int_pkt_scan;
 	/* other_input makes the gspca core create gspca_dev->input even when
 	   int_pkt_scan is NULL, for cams with non interrupt driven buttons */
@@ -167,7 +167,7 @@
 	struct usb_device *dev;
 	struct file *capt_file;		/* file doing video capture */
 					/* protected by queue_lock */
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+#if IS_ENABLED(CONFIG_INPUT)
 	struct input_dev *input_dev;
 	char phys[64];			/* physical device path */
 #endif
@@ -190,7 +190,7 @@
 #define USB_BUF_SZ 64
 	__u8 *usb_buf;				/* buffer for USB exchanges */
 	struct urb *urb[MAX_NURBS];
-#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+#if IS_ENABLED(CONFIG_INPUT)
 	struct urb *int_urb;
 #endif