I found it. Need to add the bolded phrase below to add gfxRAM:
define region RAM_region = mem:[from __ICFEDIT_region_RAM_start__ to __ICFEDIT_region_RAM_end__] | mem:[from 0x3F400000 to 0x3F47FFFF];
Without using the IAR symbols, it is:
define region RAM_region = mem:[from 0x3F000410 to 0x3F07FFFF] | mem:[from 0x3F400000 to 0x3F47FFFF];
We are skipping the first 0x410 locations for the vector table (don't let linker allocate in there).
Chris