osmo-auc-gen: umts: use default of ind_bitlen = 5 instead of 0

Most USIM out there seem to use IND-length = 5 bits, so do sysmousim-sjs1.
Currently from initialization we are using an IND length of zero in
osmo-auc-gen, which produces confusing SQN results after AUTS:

Where want SQN to be incremented to the next IND array, usually +32, an IND-len
of 0 makes for only +1.

As result, the osmo-auc-gen_test.sh produces SQN 32 instead of 24 after
receiving SQN.MS = 23 from AUTS: adjust test expectations.

Related: OS#2465
Change-Id: I9fcc11fa2b5816302dcc6b72249b1ee40d5a61f5
diff --git a/tests/osmo-auc-gen/osmo-auc-gen_test.ok b/tests/osmo-auc-gen/osmo-auc-gen_test.ok
index 6a78886..a1d06f0 100644
--- a/tests/osmo-auc-gen/osmo-auc-gen_test.ok
+++ b/tests/osmo-auc-gen/osmo-auc-gen_test.ok
@@ -89,10 +89,10 @@
 This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY
 
 RAND:	39fa2f4e3d523d8619a73b4f65c3e14d
-AUTN:	8704f5ba55eb0000d7fc4f7f19cfc180
+AUTN:	8704f5ba55d30000541dde77ea5b1d8c
 IK:	27497388b6cb044648f396aa155b95ef
 CK:	f64735036e5871319c679f4742a75ea1
 RES:	e229c19e791f2e41
 SRES:	9b36efdf
 Kc:	059a4f668f6fbe39
-SQN:	24
+SQN:	32