op-build update 3-15-2022

Changes Included for package hostboot, branch master:
393fbe9 - Stephen Glancy - 2022-03-14 - Adds workaround to disable WR 2D VREF training for specific parts

Signed-off-by: hostboot <hostboot@us.ibm.com>
diff --git a/openpower/package/hostboot/Config.in b/openpower/package/hostboot/Config.in
index c194f9a..a5ed8f7 100644
--- a/openpower/package/hostboot/Config.in
+++ b/openpower/package/hostboot/Config.in
@@ -25,7 +25,7 @@
 
 config BR2_HOSTBOOT_VERSION
 	string
-	default "5ed901d2ef317f4d2b3857cd34d3f416b663580a" if BR2_HOSTBOOT_LATEST_VERSION
+	default "393fbe94077cd31670e50a31f72c1390ff8691af" if BR2_HOSTBOOT_LATEST_VERSION
 	default BR2_HOSTBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_CUSTOM_VERSION