wl1271: Changed wl1271_sdio to be selectable only on ARM

As wl1271_sdio implementation depends on ARM GPIO impelementation it is
not directly usable on other architectures at the moment. Added
ARM dependency to kernel configuration option.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/Kconfig

@@ -53,7 +53,7 @@ config WL1271
 	  unsure.
 
 config WL1271_SPI
-	tristate "TI wl1251 SPI support"
+	tristate "TI wl1271 SPI support"
 	depends on WL1271 && SPI_MASTER
 	---help---
 	  This module adds support for the SPI interface of adapters using
@@ -65,7 +65,7 @@ config WL1271_SPI
 
 config WL1271_SDIO
 	tristate "TI wl1271 SDIO support"
-	depends on WL1271 && MMC
+	depends on WL1271 && MMC && ARM
 	---help---
 	  This module adds support for the SDIO interface of adapters using
 	  TI wl1271 chipset.  Select this if your platform is using