mfd: Fix lpc_sch related depends/selects, fix build error

LPC_SCH is selected by GPI_SCH and I2C_ISCH, even when PCI is not
enabled, but LPC_SCH depends on PCI, so make GPI_SCH and I2C_ISCH
also depend on PCI.

Those 2 selects also need to select what LPC_SCH selects,
since kconfig does not follow selects.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/gpio/Kconfig

@@ -96,7 +96,8 @@ config GPIO_VR41XX
 
 config GPIO_SCH
 	tristate "Intel SCH GPIO"
-	depends on GPIOLIB
+	depends on GPIOLIB && PCI
+	select MFD_CORE
 	select LPC_SCH
 	help
 	  Say yes here to support GPIO interface on Intel Poulsbo SCH.

drivers/i2c/busses/Kconfig

@@ -105,6 +105,8 @@ config I2C_I801
 
 config I2C_ISCH
 	tristate "Intel SCH SMBus 1.0"
+	depends on PCI
+	select MFD_CORE
 	select LPC_SCH
 	help
 	  Say Y here if you want to use SMBus controller on the Intel SCH