chromeos: Add correct dependency on HAVE_ACPI_TABLES for gvns and ramoops.

CQ-DEPEND=CL:228856
BUG=chrome-os-partner:33676
BRANCH=None
TEST=Compiles successfully for samus, link, rush_ryu.

Change-Id: I8499cab5dd08981a558688964b99b65d78bde476
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/228743
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>

src/vendorcode/google/chromeos/Kconfig

@@ -66,7 +66,7 @@ config CHROMEOS_RAMOOPS
 config CHROMEOS_RAMOOPS_DYNAMIC
 	bool "Allocate RAM oops buffer in cbmem"
 	default n
-	depends on CHROMEOS_RAMOOPS
+	depends on CHROMEOS_RAMOOPS && HAVE_ACPI_TABLES
 
 config CHROMEOS_RAMOOPS_RAM_START
 	hex "Physical address of preserved RAM"

src/vendorcode/google/chromeos/Makefile.inc

@@ -34,7 +34,7 @@ ramstage-$(CONFIG_CHROMEOS_VBNV_FLASH) += vbnv_flash.c
 
 romstage-$(CONFIG_ARCH_ROMSTAGE_X86_32) += vboot.c
 ramstage-$(CONFIG_ELOG) += elog.c
-ramstage-y += gnvs.c
+ramstage-$(CONFIG_HAVE_ACPI_TABLES) += gnvs.c
 verstage-y += fmap.c
 romstage-y += fmap.c
 ramstage-y += fmap.c

src/vendorcode/google/chromeos/ramoops.c

@@ -26,6 +26,8 @@
 #include <device/device.h>
 #include "chromeos.h"
 
+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
+
 static void set_ramoops(chromeos_acpi_t *chromeos, void *ram_oops, size_t size)
 {
 	if (chromeos == NULL) {
@@ -97,3 +99,4 @@ void chromeos_ram_oops_init(chromeos_acpi_t *chromeos)
 	reserve_ram_oops_dynamic(chromeos);
 }
 
+#endif