ar71xx: update Carambola2 platform data

Change list:
 * Remove button info on GPIO12, there is no button there.
 * Remove nvram mtd partition, as it's not used for anything, saves 64k for user data.

Tested building for carambola2 target.

Signed-off-by: Mantas Pucka <mantas@8devices.com>

Backport of r41993

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42013 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar71xx/files/arch/mips/ath79/mach-carambola2.c

@@ -25,7 +25,6 @@
 #define CARAMBOLA2_GPIO_LED_ETH1		13
 
 #define CARAMBOLA2_GPIO_BTN_JUMPSTART		11
-#define CARAMBOLA2_GPIO_BTN_RESET		12
 
 #define CARAMBOLA2_KEYS_POLL_INTERVAL		20	/* msecs */
 #define CARAMBOLA2_KEYS_DEBOUNCE_INTERVAL	(3 * CARAMBOLA2_KEYS_POLL_INTERVAL)
@@ -60,14 +59,6 @@ static struct gpio_keys_button carambola2_gpio_keys[] __initdata = {
 		.gpio		= CARAMBOLA2_GPIO_BTN_JUMPSTART,
 		.active_low	= 1,
 	},
-	{
-		.desc		= "reset button",
-		.type		= EV_KEY,
-		.code		= KEY_RESTART,
-		.debounce_interval = CARAMBOLA2_KEYS_DEBOUNCE_INTERVAL,
-		.gpio		= CARAMBOLA2_GPIO_BTN_RESET,
-		.active_low	= 1,
-	}
 };
 
 static void __init carambola2_common_setup(void)

target/linux/ar71xx/image/Makefile

@@ -248,7 +248,7 @@ ap96_mtdlayout=mtdparts=spi0.0:192k(u-boot)ro,64k(u-boot-env)ro,6144k(rootfs),17
 ap113_mtd_layout=mtdparts=spi0.0:64k(u-boot),3008k(rootfs),896k(uImage),64k(NVRAM),64k(ART),3904k@0x10000(firmware)
 ap121_mtdlayout_2M=mtdparts=spi0.0:64k(u-boot)ro,1216k(rootfs),704k(kernel),64k(art)ro,1920k@0x10000(firmware)
 ap121_mtdlayout_4M=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,2752k(rootfs),896k(kernel),64k(nvram),64k(art)ro,3648k@0x50000(firmware)
-carambola2_mtdlayout_16M=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,15936k(firmware),64k(nvram),64k(art)ro
+carambola2_mtdlayout_16M=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,16000k(firmware),64k(art)ro
 ap132_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,1408k(kernel),6400k(rootfs),64k(art),7808k@0x50000(firmware)
 ap135_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,14528k(rootfs),1472k(kernel),64k(art)ro,16000k@0x50000(firmware)
 ap136_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,6336k(rootfs),1408k(kernel),64k(mib0),64k(art)ro,7744k@0x50000(firmware)