[ARM] 3188/1: Add missing i2c dependency for Akita

Patch from Richard Purdie

Akita requires inbuilt kernel i2c support for its GPIOs. Add this
requirement to Kconfig and update the defconfig to match.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/configs/spitz_defconfig

@@ -897,7 +897,24 @@ CONFIG_UNIX98_PTYS=y
 #
 # I2C support
 #
-# CONFIG_I2C is not set
+CONFIG_I2C=y
+# CONFIG_I2C_CHARDEV is not set
+
+#
+# I2C Algorithms
+#
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALGOPCA is not set
+
+#
+# I2C Hardware Bus support
+#
+CONFIG_I2C_PXA=y
+# CONFIG_I2C_PXA_SLAVE is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_PCA_ISA is not set
 
 #
 # Hardware Monitoring support

arch/arm/mach-pxa/Kconfig

@@ -77,6 +77,8 @@ config MACH_AKITA
 	depends PXA_SHARPSL_27x
 	select PXA_SHARP_Cxx00
 	select MACH_SPITZ
+	select I2C
+	select I2C_PXA
 
 config MACH_SPITZ
 	bool "Enable Sharp Zaurus SL-3000 (Spitz) Support"