make gsup ipa name configurable in osmo-msc.cfg

Add a 'ipa-name' VTY command which overrides the default IPA name
used by the MSC. This is a prerequisite for inter-MSC handover.

Related: OS#3355
Change-Id: I317d6c59f77e92fbb2b875a83dc0ec2fa5cb6006
diff --git a/tests/msc_vlr/msc_vlr_test_no_authen.err b/tests/msc_vlr/msc_vlr_test_no_authen.err
index 189c680..ba82fc9 100644
--- a/tests/msc_vlr/msc_vlr_test_no_authen.err
+++ b/tests/msc_vlr/msc_vlr_test_no_authen.err
@@ -1,5 +1,5 @@
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen
 - Location Update request causes a GSUP LU request to HLR
@@ -314,7 +314,7 @@
 ===== test_no_authen: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_tmsi
 - Location Update request causes a GSUP LU request to HLR
@@ -813,7 +813,7 @@
 ===== test_no_authen_tmsi: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_imei
 - Location Update request causes a GSUP LU request to HLR
@@ -994,7 +994,7 @@
 ===== test_no_authen_imei: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_tmsi_imei
 - Location Update request causes a GSUP LU request to HLR
@@ -1201,7 +1201,7 @@
 ===== test_no_authen_tmsi_imei: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_imeisv
 - Location Update request causes an IMEISV ID request back to the MS
@@ -1368,7 +1368,7 @@
 ===== test_no_authen_imeisv: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_imeisv_imei
 - Location Update request causes an IMEISV ID request back to the MS
@@ -1567,7 +1567,7 @@
 ===== test_no_authen_imeisv_imei: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_imeisv_tmsi
 - Location Update request causes an IMEISV ID request back to the MS
@@ -1929,7 +1929,7 @@
 ===== test_no_authen_imeisv_tmsi: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_imeisv_tmsi_imei
 - Location Update request causes an IMEISV ID request back to the MS
@@ -2155,7 +2155,7 @@
 ===== test_no_authen_imeisv_tmsi_imei: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 ===== test_no_authen_subscr_expire
 - Total time passed: 0.000000 s
@@ -2273,8 +2273,8 @@
 ===== test_no_authen_subscr_expire: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 12
+talloc_total_blocks(tall_bsc_ctx) == 13