gpio: gemini: rename to match Faraday IP

The Gemini driver is actually a driver for the Faraday Technology
FTGPIO010 IP block. We rename the driver and the Kconfig symbol and
put in a a new compatible string for the Moxa ART SoC that is also
using this IP block.

Tested-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/Makefile

@@ -48,8 +48,8 @@ obj-$(CONFIG_GPIO_EP93XX)	+= gpio-ep93xx.o
 obj-$(CONFIG_GPIO_ETRAXFS)	+= gpio-etraxfs.o
 obj-$(CONFIG_GPIO_EXAR)		+= gpio-exar.o
 obj-$(CONFIG_GPIO_F7188X)	+= gpio-f7188x.o
+obj-$(CONFIG_GPIO_FTGPIO010)	+= gpio-ftgpio010.o
 obj-$(CONFIG_GPIO_GE_FPGA)	+= gpio-ge.o
-obj-$(CONFIG_GPIO_GEMINI)	+= gpio-gemini.o
 obj-$(CONFIG_GPIO_GPIO_MM)	+= gpio-gpio-mm.o
 obj-$(CONFIG_GPIO_GRGPIO)	+= gpio-grgpio.o
 obj-$(CONFIG_HTC_EGPIO)		+= gpio-htc-egpio.o