op-build update 4-22-2020

Changes Included for package occ, branch master:
ab4dc96 - mbroyles - 2020-04-20 - Fix Vdd ceff ratio calculation when active cores is less than sort cores
1bf0c8c - Chris Cain - 2020-02-05 - Minor updates to occtoolp9
8d4e7fa - Sumit Kumar - 2020-01-09 - Corrected Alink scom address in PMU_CONFIGS_16

Signed-off-by: hostboot <hostboot@us.ibm.com>
diff --git a/openpower/package/occ/Config.in b/openpower/package/occ/Config.in
index 4ebb73d..d9df0b3 100644
--- a/openpower/package/occ/Config.in
+++ b/openpower/package/occ/Config.in
@@ -43,7 +43,7 @@
 
 config BR2_OCC_VERSION
 	string
-	default "3ab29212518e6574019fd569588a58cba9ba9823" if BR2_OCC_LATEST_VERSION
+	default "ab4dc96fd6cf584c42bd0b45be25458c0e61ad63" if BR2_OCC_LATEST_VERSION
 	default BR2_OCC_CUSTOM_VERSION_VALUE \
 		if BR2_OCC_CUSTOM_VERSION