Only compile max7310 when one target uses it

Patchworks-ID: 35210
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Makefile

@@ -98,7 +98,8 @@ obj-y += readline.o console.o
 obj-y += tcg-runtime.o host-utils.o
 obj-y += irq.o ioport.o
 obj-$(CONFIG_PTIMER) += ptimer.o
-obj-y += i2c.o smbus.o smbus_eeprom.o max7310.o max111x.o wm8750.o
+obj-$(CONFIG_MAX7310) += max7310.o
+obj-y += i2c.o smbus.o smbus_eeprom.o max111x.o wm8750.o
 obj-y += ssd0303.o ssd0323.o ads7846.o stellaris_input.o twl92230.o
 obj-y += tmp105.o lm832x.o eeprom93xx.o tsc2005.o
 obj-y += scsi-disk.o cdrom.o

default-configs/arm-softmmu.mak

@@ -7,3 +7,4 @@ CONFIG_NAND=y
 CONFIG_ECC=y
 CONFIG_PTIMER=y
 CONFIG_SD=y
+CONFIG_MAX7310=y