Fix PGPE beacon detection

Change-Id: I01eac62933d1188a68621fcd767f53b7a9296de3
CQ: SW434707
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/61061
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Andres A. Lugo-Reyes <aalugore@us.ibm.com>
Reviewed-by: William A. Bryan <wilbryan@us.ibm.com>
Reviewed-by: Christopher J. Cain <cjcain@us.ibm.com>

src/occ_405/occbuildname.c

@@ -34,6 +34,6 @@ volatile const char G_occ_buildname[16] __attribute__((section(".buildname"))) =
 
 #else
 
-volatile const char G_occ_buildname[16] __attribute__((section(".buildname"))) = /*<BuildName>*/  "op_occ_180612a\0"  /*</BuildName>*/ ;
+volatile const char G_occ_buildname[16] __attribute__((section(".buildname"))) = /*<BuildName>*/  "op_occ_180621a\0"  /*</BuildName>*/ ;
 
 #endif

src/occ_405/timer/timer.c

@@ -585,6 +585,7 @@ void check_pgpe_beacon(void)
             // pgpe beacon changed over the last 4 ms
             L_pgpe_beacon_unchanged_4ms = false;
             L_unchanged_count = 0;
+            L_prev_pgpe_beacon = pgpe_beacon;
         }
     } while(0);