op-build update 4-6-2020

Changes Included for package hostboot, branch master:
9f4f5c8 - Dan Crowell - 2020-04-03 - Allow very long attribute names
6110ede - Andre A. Marin - 2020-04-03 - Add explorer rc response to eff_config
9ba2723 - Andre A. Marin - 2020-04-03 - Add empty explorer_rc_resp_fields file for HB mirroring
6ed0290 - Louis Stermole - 2020-04-03 - Change "ALL EFDs have been exhausted" trace from error to info
e9687ad - Louis Stermole - 2020-04-02 - Add unmasks for REG1 and REG2 versions of OMI_FIR for Axone
875d8fc - Adam Hale - 2020-04-02 - Remove OMIDL FIR setup from procedures, is done in initfiles

Signed-off-by: hostboot <hostboot@us.ibm.com>
diff --git a/openpower/package/hostboot/Config.in b/openpower/package/hostboot/Config.in
index 7590bac..eff1592 100644
--- a/openpower/package/hostboot/Config.in
+++ b/openpower/package/hostboot/Config.in
@@ -25,7 +25,7 @@
 
 config BR2_HOSTBOOT_VERSION
 	string
-	default "8e9344fa05e1a2cb78677fe534e2082b66d19dec" if BR2_HOSTBOOT_LATEST_VERSION
+	default "9f4f5c89e7231a29ebf78a997879984207229325" if BR2_HOSTBOOT_LATEST_VERSION
 	default BR2_HOSTBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_CUSTOM_VERSION