op-build update 8-31-2020

Changes Included for package hostboot, branch master:
b87ca4b - Mark Pizzutillo - 2020-08-28 - Port latch_wr_vref to generic (Part 1.5a)
08548d6 - Rahul Batra - 2020-08-28 - PM: NACK disable and OCC notification
5318d0f - Mark Pizzutillo - 2020-08-28 - Add support for PMIC 1U/2U PWR_GOOD IO Mode

Signed-off-by: hostboot <hostboot@us.ibm.com>
diff --git a/openpower/package/hostboot/Config.in b/openpower/package/hostboot/Config.in
index 0b37dc1..49c6c77 100644
--- a/openpower/package/hostboot/Config.in
+++ b/openpower/package/hostboot/Config.in
@@ -25,7 +25,7 @@
 
 config BR2_HOSTBOOT_VERSION
 	string
-	default "77055688863605510483ae46ea6f28bd9fbfe392" if BR2_HOSTBOOT_LATEST_VERSION
+	default "b87ca4bf90a88aadad0349e2ebfaeb592a35fe8e" if BR2_HOSTBOOT_LATEST_VERSION
 	default BR2_HOSTBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_CUSTOM_VERSION