intel/fsp_rangeley: Rename raminit.c to memmap.c

Use a name consistent with the more recent soc/intel.

Change-Id: I704d7cb637e4e12039ade99f57e10af794c8be97
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34698
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: David Guckian

src/northbridge/intel/fsp_rangeley/Makefile.inc

@@ -18,12 +18,12 @@ ifeq ($(CONFIG_NORTHBRIDGE_INTEL_FSP_RANGELEY),y)
 
 subdirs-y += fsp
 ramstage-y += northbridge.c
-ramstage-y += raminit.c
+ramstage-y += memmap.c
 
 ramstage-y += acpi.c
 ramstage-y += port_access.c
 
-romstage-y += raminit.c
+romstage-y += memmap.c
 romstage-y += ../../../arch/x86/walkcbfs.S
 romstage-y += port_access.c