powerpc/t208xqds: VID support

The fuse status register provides the values from on-chip
voltage ID efuses programmed at the factory.
These values define the voltage requirements for
the chip. u-boot reads FUSESR and translates the values
into the appropriate commands to set the voltage output
value of an external voltage regulator.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 25a1bc1..59ddeef 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -23,6 +23,7 @@
 obj-$(CONFIG_FSL_PIXIS)	+= pixis.o
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_FSL_NGPIXIS)	+= ngpixis.o
+obj-$(CONFIG_VID)		+= vid.o
 endif
 obj-$(CONFIG_FSL_QIXIS)	+= qixis.o
 obj-$(CONFIG_PQ_MDS_PIB)	+= pq-mds-pib.o