Merge pull request #3590 from dcrowell77/explorerfw_v4.0

Update Explorer FW to v4.0
diff --git a/openpower/package/hcode/Config.in b/openpower/package/hcode/Config.in
index 53a84ab..087e251 100644
--- a/openpower/package/hcode/Config.in
+++ b/openpower/package/hcode/Config.in
@@ -31,7 +31,7 @@
 
 config BR2_HCODE_VERSION
 	string
-	default "hw042320a.opmst" if BR2_HCODE_LATEST_VERSION
+	default "hw042420a.opmst" if BR2_HCODE_LATEST_VERSION
 	default BR2_HCODE_CUSTOM_VERSION_VALUE \
 		if BR2_HCODE_CUSTOM_VERSION
 
diff --git a/openpower/package/hostboot/Config.in b/openpower/package/hostboot/Config.in
index 1a319ed..46f35d2 100644
--- a/openpower/package/hostboot/Config.in
+++ b/openpower/package/hostboot/Config.in
@@ -25,7 +25,7 @@
 
 config BR2_HOSTBOOT_VERSION
 	string
-	default "129a80acf803bdaabdb9341ad0c5a71c9f5620b2" if BR2_HOSTBOOT_LATEST_VERSION
+	default "e27c350a6a3d9ffda1eaf0e7dccc660963e631a1" if BR2_HOSTBOOT_LATEST_VERSION
 	default BR2_HOSTBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_CUSTOM_VERSION