extcon: adc-jack: Fix incompatible pointer type warning

This patch fixes the incompatible warning of extcon-adc-jack.c driver
when calling devm_extcon_dev_allocate().

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
[cw00.choi: Modify the patch title and descritpion]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

include/linux/extcon/extcon-adc-jack.h

@@ -59,7 +59,7 @@ struct adc_jack_pdata {
 	const char *name;
 	const char *consumer_channel;
 
-	const enum extcon *cable_names;
+	const unsigned int *cable_names;
 
 	/* The last entry's state should be 0 */
 	struct adc_jack_cond *adc_conditions;