Change name in DRAM IP Makefile from IP_MIG_7SERIES_TG_SRCS to
IP_DDR3_16BIT_TG_SRCS to match the naming of other variables.
Original-commit: febf339e0df412e54cf43a204c280128d8ca1ec3
This adds DRAM support to E31x devices. Due to the size of the DDR3
memory controller, it is not enabled by default. You can include the
memory controller IP in the build by adding the DRAM environment
variable to your build. For example:
DRAM=1 make E310_SG3
Original-commit: 788fef11ef890c6dcee3be495fc381bcf2990d3b