sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB

SH GPIO drivers all use gpiolib and CONFIG_GENERIC_GPIO is only selected
through CONFIG_GPIOLIB, yet some compilation units depended on
CONFIG_GENERIC_GPIO. Make them depend on CONFIG_GPIOLIB instead since it
is more accurate and prepares us for the future removal of
CONFIG_GENERIC_GPIO.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

arch/sh/boards/mach-sdk7786/Makefile

 obj-y	:= fpga.o irq.o nmi.o setup.o
 
-obj-$(CONFIG_GENERIC_GPIO)	+= gpio.o
+obj-$(CONFIG_GPIOLIB)		+= gpio.o
 obj-$(CONFIG_HAVE_SRAM_POOL)	+= sram.o

arch/sh/boards/mach-x3proto/Makefile

 obj-y += setup.o ilsel.o
 
-obj-$(CONFIG_GENERIC_GPIO)	+= gpio.o
+obj-$(CONFIG_GPIOLIB)		+= gpio.o

arch/sh/kernel/cpu/sh2a/Makefile

@@ -21,4 +21,4 @@ pinmux-$(CONFIG_CPU_SUBTYPE_SH7203)	:= pinmux-sh7203.o
 pinmux-$(CONFIG_CPU_SUBTYPE_SH7264)	:= pinmux-sh7264.o
 pinmux-$(CONFIG_CPU_SUBTYPE_SH7269)	:= pinmux-sh7269.o
 
-obj-$(CONFIG_GENERIC_GPIO)	+= $(pinmux-y)
+obj-$(CONFIG_GPIOLIB)			+= $(pinmux-y)

arch/sh/kernel/cpu/sh3/Makefile

@@ -30,4 +30,4 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7712)	:= clock-sh7712.o
 pinmux-$(CONFIG_CPU_SUBTYPE_SH7720)	:= pinmux-sh7720.o
 
 obj-y	+= $(clock-y)
-obj-$(CONFIG_GENERIC_GPIO)	+= $(pinmux-y)
+obj-$(CONFIG_GPIOLIB)			+= $(pinmux-y)

arch/sh/kernel/cpu/sh4a/Makefile

@@ -47,6 +47,6 @@ pinmux-$(CONFIG_CPU_SUBTYPE_SHX3)	:= pinmux-shx3.o
 
 obj-y					+= $(clock-y)
 obj-$(CONFIG_SMP)			+= $(smp-y)
-obj-$(CONFIG_GENERIC_GPIO)		+= $(pinmux-y)
+obj-$(CONFIG_GPIOLIB)			+= $(pinmux-y)
 obj-$(CONFIG_PERF_EVENTS)		+= perf_event.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= ubc.o