Update garrison-xml Pointer

Picking up MSS_INTERLEAVE_ENABLE move and GPU_SENSE updates.
diff --git a/openpower/package/garrison-xml/garrison.mk b/openpower/package/garrison-xml/garrison.mk
index 55d1d5f..4c07ca0 100644
--- a/openpower/package/garrison-xml/garrison.mk
+++ b/openpower/package/garrison-xml/garrison.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GARRISON_XML_VERSION ?= 4410e63e97a388e156082d5bcb0325c0bbf670ad
+GARRISON_XML_VERSION ?= ec525e1d5f869a94c278b4cf9b7a0ec1dfeb5abe
 GARRISON_XML_SITE ?= $(call github,open-power,garrison-xml,$(GARRISON_XML_VERSION))
 
 GARRISON_XML_LICENSE = Apache-2.0