rainier: Enable pstore to expose ramoops data

(From meta-ibm rev: 03ff1fa3f6ce475760535c08dfea9b751aa71f65)

Change-Id: I17ddb7eef0853cb0a3ae23ab0f67043b931afc34
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-ibm/recipes-kernel/linux/linux-aspeed/rainier.cfg b/meta-ibm/recipes-kernel/linux/linux-aspeed/rainier.cfg
index dc41d58..f79ad4e 100644
--- a/meta-ibm/recipes-kernel/linux/linux-aspeed/rainier.cfg
+++ b/meta-ibm/recipes-kernel/linux/linux-aspeed/rainier.cfg
@@ -5,3 +5,7 @@
 CONFIG_RTC_DRV_RV8803=y
 CONFIG_IIO=y
 CONFIG_BMP280=y
+CONFIG_PSTORE=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_PMSG=y
+CONFIG_PSTORE_RAM=y