Revert hcode-p10 and hostboot-binaries-p10 to working levels

  - Revert hcode-p10 to hw011520a.opmst10
  - Rever hostboot-binaries-p10 to hw011320a.opmst10
diff --git a/openpower/package/hcode-p10/Config.in b/openpower/package/hcode-p10/Config.in
index 0ba335c..35d9cd3 100644
--- a/openpower/package/hcode-p10/Config.in
+++ b/openpower/package/hcode-p10/Config.in
@@ -31,7 +31,7 @@
 
 config BR2_HCODE_P10_VERSION
 	string
-	default "hw012120a.opmst10" if BR2_HCODE_P10_LATEST_VERSION
+	default "hw011520a.opmst10" if BR2_HCODE_P10_LATEST_VERSION
 	default BR2_HCODE_P10_CUSTOM_VERSION_VALUE \
 		if BR2_HCODE_P10_CUSTOM_VERSION