cpu/x86/name: Make name.c file available in romstage

In this patch, name.c file that includes the function definition for
fill_processor_name which is used by the report_cpu_info function is been
made available in romstage.

This is done to facilitate the report_platform_info to be called from
romstage, as the intention is to move the report_platform_info to romstage
for all SOC's due to the bootblock size constraint.

BUG=None
TEST=Build and boot APL, GLK and CNL platforms.

Change-Id: Ifd6d4b80c2e07d02adaed676a56efeb6fb704552
Signed-off-by: Usha P <usha.p@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38940
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/cpu/x86/name/Makefile.inc

@@ -12,4 +12,5 @@
 ##
 
 bootblock-y += name.c
+romstage-y += name.c
 ramstage-y += name.c