hlr: add TC_MSLookup_mDNS_service_other_home

Send an mslookup mDNS request to the home HLR, asking about a service
that is not "gsup.hlr". Hence the "_other" in the test name, service
"gsup.hlr" has different code paths, and related tests will be added in
follow-up patches.

This is the first test using MSLookup_mDNS_Emulation, so add related
test infrastructure.

Related: OS#4380
Depends: osmo-hlr I2fe453553c90e6ee527ed13a13089900efd488aa
Change-Id: Ia7f92d33691f910549353b16a7b0efc18e521719
diff --git a/hlr/HLR_Tests.cfg b/hlr/HLR_Tests.cfg
index 7416362..1ab6e87 100644
--- a/hlr/HLR_Tests.cfg
+++ b/hlr/HLR_Tests.cfg
@@ -12,6 +12,7 @@
 
 
 [MODULE_PARAMETERS]
+HLR_Tests.mp_hlr_supports_dgsm := true
 
 [MAIN_CONTROLLER]