Make WaitIndication T3172 configurable

Tbftest expectatins need to change because 5000/20 = 250 < 255, hence
the message is now sent as units of 20ms instead of seconds.

Related: OS#3928
Change-Id: I48b34b94b1a5dfb046a3a6cf8a0d944a7c9b6754
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index cf8e083..e0fd9cc 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -3264,7 +3264,7 @@
 	the_pcu = gprs_pcu_alloc(tall_pcu_ctx);
 	struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0);
 	uint32_t tlli = 0xffeeddcc;
-	static uint8_t exp[] = { 0x40, 0x84, 0x7f, 0xf7, 0x6e, 0xe6, 0x41, 0x4b,
+	static uint8_t exp[] = { 0x40, 0x84, 0x7f, 0xf7, 0x6e, 0xe6, 0x7e, 0xab,
 				 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
 				 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b
 	};