mb, soc: change mainboard_get_dram_part_num() prototype

Change mainboard_get_dram_part_num() to return a constant character
pointer to a null-terminated C string and to take no input
parameters.  This also addresses the issue that different SOCs and
motherboards were using different definitions for
mainboard_get_dram_part_num by consolidating to a single definition.

BUG=b:169774661, b:168724473
TEST="emerge-volteer coreboot && emerge-dedede coreboot && emerge-hatch
coreboot" and verify build completes successfully.

Change-Id: Ie7664eab65a2b9e25b7853bf68baf2525b040487
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45873
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions