mfd: arizona: Integrate wm8997 into Arizona mfd

The wm8997 is a compact, high-performance audio hub CODEC with SLIMbus
interfacing, for smartphones, tablets and other portable audio devices
based on the Arizona platform.

This patch integrates the wm8997 into the Arizona mfd.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 31d0f97..4d70cdb 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -43,6 +43,9 @@
 ifneq ($(CONFIG_MFD_WM5110),n)
 obj-$(CONFIG_MFD_ARIZONA)	+= wm5110-tables.o
 endif
+ifneq ($(CONFIG_MFD_WM8997),n)
+obj-$(CONFIG_MFD_ARIZONA)	+= wm8997-tables.o
+endif
 obj-$(CONFIG_MFD_WM8400)	+= wm8400-core.o
 wm831x-objs			:= wm831x-core.o wm831x-irq.o wm831x-otp.o
 wm831x-objs			+= wm831x-auxadc.o