op-build update 1-26-2018

Changes Included for package occ, branch master:
577915f - mbroyles - 2018-01-22 - Add WOF disable param for ASM
c04d58b - Andres Lugo-Reyes - 2018-01-19 - WOF Phase 2: Use Vratio from PGPE
00123c6 - William Bryan - 2018-01-16 - Update GPE1 Binary 1/16/18
2397cb6 - mbroyles - 2018-01-15 - Handle PGPE timeouts as workaround for prolonged droop events
d868b77 - Sooraj Nair - 2018-01-09 - nvlink,xlink,phb fixes
c358181 - mbroyles - 2018-01-05 - OCC error log clean up
4d29129 - Andres Lugo-Reyes - 2017-12-18 - OCC: Call Home Data Log
0bf193d - Doug Gilbert - 2017-12-18 - APSS Reset Support
diff --git a/openpower/package/occ/occ.mk b/openpower/package/occ/occ.mk
index 841849a..a1af1a8 100644
--- a/openpower/package/occ/occ.mk
+++ b/openpower/package/occ/occ.mk
@@ -5,7 +5,7 @@
 ################################################################################
 
 OCC_VERSION_BRANCH_MASTER_P8 ?= 28f2cec690b7f19548ce860a8820f519e6c39a6a
-OCC_VERSION_BRANCH_MASTER ?= fce2d94a9bc94e9468bce173b11fd0b96ef36c1f
+OCC_VERSION_BRANCH_MASTER ?= 577915f28604090d3b9a16e7a5a109d3afff87f9
 
 OCC_VERSION ?= $(if $(BR2_OPENPOWER_POWER9),$(OCC_VERSION_BRANCH_MASTER),$(OCC_VERSION_BRANCH_MASTER_P8))
 OCC_SITE ?= $(call github,open-power,occ,$(OCC_VERSION))