tests/gsm0408: add two more samples to bcap_tests[]

The mismatch for bcap_csd_2400_v22bis is expected, because octet 4
is not represented in 'struct gsm_mncc_bearer_cap' and the encoder
unconditionally hard-codes it to 0x88.

Change-Id: I4fc519c02b4fad8b0f40fa649d9de14b1183d10d
Related: OS#4396, OS#4394
diff --git a/tests/gsm0408/gsm0408_test.ok b/tests/gsm0408/gsm0408_test.ok
index b966865..721e2c5 100644
--- a/tests/gsm0408/gsm0408_test.ok
+++ b/tests/gsm0408/gsm0408_test.ok
@@ -1,4 +1,6 @@
 Test `CSD 9600/V.110/transparent' passed
+Test `CSD 4800/RLP/non-transparent' passed
+Test `CSD 2400/V.22bis/transparent' failed
 Test `Speech, all codecs' passed
 Test `Speech, without octet 3a' failed
 Simple TMSI encoding test....passed