ARM: prima2: enable gpiolib unconditionally

The pinctrl code needs GPIOLIB to be enabled, so make
sure that it cannot be built otherwise. This fixes
the prima2_defconfig.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NBarry Song <21cnbao@gmail.com>

arch/arm/Kconfig

@@ -389,7 +389,7 @@ config ARCH_PRIMA2
 	bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
 	select CPU_V7
 	select NO_IOPORT
-	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select CLKDEV_LOOKUP
 	select GENERIC_IRQ_CHIP