Use negative numbers for non-spec osmo-specific timers

(values -1 and -2 cannot be used because they are already taken).

Related: OS#3928
Change-Id: Ibcdb05ff5bb8efe6cb95cf94e2c8e418dc8deced
diff --git a/src/gprs_pcu.c b/src/gprs_pcu.c
index 52e9825..226b861 100644
--- a/src/gprs_pcu.c
+++ b/src/gprs_pcu.c
@@ -30,13 +30,13 @@
 struct gprs_pcu *the_pcu;
 
 static struct osmo_tdef T_defs_pcu[] = {
-	{ .T=1,     .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP (un)blocking procedures timer (s)",  .val=0 },
-	{ .T=2,     .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP reset procedure timer (s)",          .val=0 },
 	{ .T=3190,  .default_val=5,   .unit=OSMO_TDEF_S,  .desc="Return to packet idle mode after Packet DL Assignment on CCCH (s)", .val=0},
 	{ .T=PCU_TDEF_NEIGH_RESOLVE_TO,    .default_val=1000,  .unit=OSMO_TDEF_MS,   .desc="[ARFCN+BSIC]->[RAC+CI] resolution timeout (ms)", .val=0 },
 	{ .T=PCU_TDEF_SI_RESOLVE_TO,	   .default_val=1000,  .unit=OSMO_TDEF_MS,   .desc="RIM RAN-INFO response timeout (ms)",	    .val=0 },
 	{ .T=PCU_TDEF_NEIGH_CACHE_ALIVE,   .default_val=5,  .unit=OSMO_TDEF_S,   .desc="[ARFCN+BSIC]->[RAC+CI] resolution cache entry storage timeout (s)", .val=0 },
 	{ .T=PCU_TDEF_SI_CACHE_ALIVE,      .default_val=5,  .unit=OSMO_TDEF_S,   .desc="[RAC+CI]->[SI] resolution cache entry storage timeout (s)", .val=0 },
+	{ .T=-101,  .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP (un)blocking procedures timer (s)",  .val=0 },
+	{ .T=-102,  .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP reset procedure timer (s)",          .val=0 },
 	{ .T=-2000, .default_val=2,   .unit=OSMO_TDEF_MS, .desc="Tbf reject for PRR timer (ms)",            .val=0 },
 	{ .T=-2001, .default_val=2,   .unit=OSMO_TDEF_S,  .desc="PACCH assignment timer (s)",               .val=0 },
 	{ .T=-2002, .default_val=200, .unit=OSMO_TDEF_MS, .desc="Waiting after IMM.ASS confirm timer (ms)", .val=0 },