microblaze: Kconfig: Enable drivers for Microblaze

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 8cc312b..e6af7dd 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -6,6 +6,7 @@
 config MICROBLAZE
 	def_bool y
 	select HAVE_LMB
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 
 config SWAP
 	def_bool n
@@ -49,6 +50,9 @@
 config GENERIC_HARDIRQS_NO__DO_IRQ
 	def_bool y
 
+config GENERIC_GPIO
+	def_bool y
+
 config PCI
 	depends on !MMU
 	def_bool n
@@ -105,9 +109,6 @@
 config OF
 	def_bool y
 
-config OF_DEVICE
-	def_bool y
-
 config PROC_DEVICETREE
 	bool "Support for device tree in /proc"
 	depends on PROC_FS