Ignore Power restore policy on error to continue boot

This is to prevent power restore policy blocking the system to
boot where by default some systems in community may not suport it.

Change-Id: I97908e92cf0b5a3304989745e34222160974ecaa
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/obmc_boot_test.py b/lib/obmc_boot_test.py
index e3404b2..920d14d 100755
--- a/lib/obmc_boot_test.py
+++ b/lib/obmc_boot_test.py
@@ -446,7 +446,7 @@
 
     gp.qprint_pgm_header()
 
-    grk.run_key_u(default_set_power_policy)
+    grk.run_key_u(default_set_power_policy, ignore=1)
 
     initial_plug_in_setup()