gpio: msm: switch Kconfig to ARCH_QCOM depends

We've split Qualcomm MSM support into legacy and multiplatform.  The gpio
msm-v2 driver is only relevant on the multiplatform supported SoCs so
switch the Kconfig depends to ARCH_QCOM.

CC: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>

drivers/gpio/Kconfig

@@ -192,7 +192,7 @@ config GPIO_MSM_V1
 
 config GPIO_MSM_V2
 	tristate "Qualcomm MSM GPIO v2"
-	depends on GPIOLIB && OF && ARCH_MSM
+	depends on GPIOLIB && OF && ARCH_QCOM
 	help
 	  Say yes here to support the GPIO interface on ARM v7 based
 	  Qualcomm MSM chips.  Most of the pins on the MSM can be