platform/chrome: pstore: fix dmi table to match all chrome systems

Turns out that DMI_SYSTEM_VENDOR is actually the native vendor of each
Chromebook/box. I tested the original patch on a Pixel that -- surprise,
has Google as vendor. *facepalm*.

The only other data I can think of to probe on is Google_* in the version
string.  Checking with our firmware team, all systems should have this
and nothing else than Chrome hardware should have the coreboot + Google_*
combination to date.

So, we'll switch to this. For future platforms we are going to move to
using an ACPI device to configure this instead of a DMI table (yay!),
so longer-term that will sort itself out.
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Benson Leung <bleung@chromium.org>

drivers/platform/chrome/chromeos_pstore.c

@@ -16,23 +16,13 @@
 static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
 	{
 		/*
-		 * Today all Chromebooks/boxes ship with GOOGLE as vendor and
+		 * Today all Chromebooks/boxes ship with Google_* as version and
 		 * coreboot as bios vendor. No other systems with this
 		 * combination are known to date.
 		 */
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
-			DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
-		},
-	},
-	{
-		/*
-		 * The first Samsung Chromebox and Chromebook Series 5 550 use
-		 * coreboot but with Samsung as the system vendor.
-		 */
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
 			DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
+			DMI_MATCH(DMI_BIOS_VERSION, "Google_"),
 		},
 	},
 	{