Revert PNOR SPD Commit

PNOR SPD partition commit was erroneously merged into release-fw-1030
branch. This commit reverts the PNOR repo back to the previous commit.

Signed-off-by: Ilya Smirnov <ismirno@us.ibm.com>
diff --git a/openpower/package/openpower-pnor-p10/openpower-pnor-p10.mk b/openpower/package/openpower-pnor-p10/openpower-pnor-p10.mk
index 98d65ab..4dd9400 100644
--- a/openpower/package/openpower-pnor-p10/openpower-pnor-p10.mk
+++ b/openpower/package/openpower-pnor-p10/openpower-pnor-p10.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-OPENPOWER_PNOR_P10_VERSION ?= d472edebfd56b4aa5bd782e232931b3ffc5883da
+OPENPOWER_PNOR_P10_VERSION ?= 837addb32b76e0d2c5ebad770bdad0330fcafaf1
 OPENPOWER_PNOR_P10_SITE ?= $(call github,open-power,pnor,$(OPENPOWER_PNOR_P10_VERSION))
 
 OPENPOWER_PNOR_P10_LICENSE = Apache-2.0