Update barreleye and garrison to skiboot-5.2.0

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/configs/barreleye_defconfig b/openpower/configs/barreleye_defconfig
index 2414f7b..d3eda3a 100644
--- a/openpower/configs/barreleye_defconfig
+++ b/openpower/configs/barreleye_defconfig
@@ -34,7 +34,7 @@
 BR2_TARGET_SKIBOOT=y
 BR2_TARGET_SKIBOOT_EMBED_PAYLOAD=n
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="skiboot-5.2.0-rc2"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="skiboot-5.2.0"
 
 # petitboot requirements
 BR2_ENABLE_LOCALE_PURGE=y
diff --git a/openpower/configs/garrison_defconfig b/openpower/configs/garrison_defconfig
index a505844..4b2010a 100644
--- a/openpower/configs/garrison_defconfig
+++ b/openpower/configs/garrison_defconfig
@@ -34,7 +34,7 @@
 BR2_TARGET_SKIBOOT=y
 BR2_TARGET_SKIBOOT_EMBED_PAYLOAD=n
 BR2_SKIBOOT_CUSTOM_VERSION=y
-BR2_SKIBOOT_CUSTOM_VERSION_VALUE="skiboot-5.2.0-rc2"
+BR2_SKIBOOT_CUSTOM_VERSION_VALUE="skiboot-5.2.0"
 
 # petitboot requirements
 BR2_ENABLE_LOCALE_PURGE=y