ALSA: hda: use swap() to make code cleaner

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Link: https://lore.kernel.org/r/ebc9db44b802dfc88e1538629b517e000acb27b3.1639790796.git.yang.guang5@zte.com.cnSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_auto_parser.c

@@ -92,14 +92,10 @@ static int compare_input_type(const void *ap, const void *bp)
  */
 static void reorder_outputs(unsigned int nums, hda_nid_t *pins)
 {
-	hda_nid_t nid;
-
 	switch (nums) {
 	case 3:
 	case 4:
-		nid = pins[1];
-		pins[1] = pins[2];
-		pins[2] = nid;
+		swap(pins[1], pins[2]);
 		break;
 	}
 }