msc_vlr_test_gsm_ciph.c: fix IMEISV MI: even number of digits, clear odd bit

There is an invalid Mobile Identity in the msc_vlr_test_gsm_ciph test data.
This became apparent when applying the new osmo_mobile_identity API (in a
following patch). Current Mobile Identity API ignores the error.

Change-Id: Ib1d54c59acc8b716de471ca275f54f9d22da3574
diff --git a/tests/msc_vlr/msc_vlr_test_gsm_ciph.c b/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
index 1b413f9..38a5caf 100644
--- a/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
+++ b/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
@@ -643,7 +643,7 @@
 
 	btw("MS sends Ciphering Mode Complete with IMEISV, VLR accepts and sends GSUP LU Req to HLR");
 	gsup_expect_tx("04010809710000004026f0" CN_DOMAIN VLR_TO_HLR);
-	ms_sends_ciphering_mode_complete("063217094b32244332244372f5");
+	ms_sends_ciphering_mode_complete("063217094332244332244372f5");
 	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
 
 	btw("Subscriber has the IMEISV");