soc/intel/broadwell: Move `ramstage.c` to PCH scope

The remaining code in this file is PCH-specific.

Change-Id: I0e4924e680db9c25aeb222bdd478b3282a77b34f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49946
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/broadwell/Makefile.inc b/src/soc/intel/broadwell/Makefile.inc
index 5e0ce64..55eddf1 100644
--- a/src/soc/intel/broadwell/Makefile.inc
+++ b/src/soc/intel/broadwell/Makefile.inc
@@ -19,7 +19,6 @@
 ramstage-y += northbridge.c
 ramstage-y += pei_data.c
 romstage-y += pei_data.c
-ramstage-y += ramstage.c
 ramstage-$(CONFIG_HAVE_REFCODE_BLOB) += refcode.c
 
 CPPFLAGS_common += -Isrc/soc/intel/broadwell/include
diff --git a/src/soc/intel/broadwell/pch/Makefile.inc b/src/soc/intel/broadwell/pch/Makefile.inc
index 119534f..1a1965a 100644
--- a/src/soc/intel/broadwell/pch/Makefile.inc
+++ b/src/soc/intel/broadwell/pch/Makefile.inc
@@ -24,6 +24,7 @@
 smm-y      += pmutil.c
 verstage-y += pmutil.c
 romstage-y += power_state.c
+ramstage-y += ramstage.c
 ramstage-y += sata.c
 ramstage-y += serialio.c
 ramstage-y += smbus.c
diff --git a/src/soc/intel/broadwell/ramstage.c b/src/soc/intel/broadwell/pch/ramstage.c
similarity index 100%
rename from src/soc/intel/broadwell/ramstage.c
rename to src/soc/intel/broadwell/pch/ramstage.c