ar71xx: fix reset button gpio for OM2P/OM2P-HS

A typo in the definition for the OM2P reset button disabled its functionality
in OpenWrt. The actual button for these two devices is "1" and not "11".

Signed-off-by: Oren Poleg <oren@poleg.org>
[sven@open-mesh.org: added a commit subject+message]
Signed-off-by: Sven Eckelmann <sven@open-mesh.com>

SVN-Revision: 42782

target/linux/ar71xx/files/arch/mips/ath79/mach-om2p.c

@@ -31,7 +31,7 @@
 #define OM2P_GPIO_LED_YELLOW	15
 #define OM2P_GPIO_LED_LAN	16
 #define OM2P_GPIO_LED_WAN	17
-#define OM2P_GPIO_BTN_RESET	11
+#define OM2P_GPIO_BTN_RESET	1
 
 #define OM2P_KEYS_POLL_INTERVAL		20	/* msecs */
 #define OM2P_KEYS_DEBOUNCE_INTERVAL	(3 * OM2P_KEYS_POLL_INTERVAL)