replace osmo_counter with stat_items

osmo_counter will be soon deprecated. Use the newer and more flexible
osmo_stat_item instead.

Depends on: Id2462c4866bd22bc2338c9c8f69b775f88ae7511 (libosmocore)
Change-Id: I6a20123b263f4f808153794ee8a735092deb399e
diff --git a/tests/msc_vlr/msc_vlr_test_call.err b/tests/msc_vlr/msc_vlr_test_call.err
index 0eaa2f3..d5fd893 100644
--- a/tests/msc_vlr/msc_vlr_test_call.err
+++ b/tests/msc_vlr/msc_vlr_test_call.err
@@ -1,6 +1,6 @@
 DLMGCP MGCP client: using endpoint domain '@mgw'
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 ===== test_call_mo
 - Total time passed: 0.000000 s
@@ -426,7 +426,7 @@
 ===== test_call_mo: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 ===== test_call_mt
 - Total time passed: 0.000000 s
@@ -850,7 +850,7 @@
 ===== test_call_mt: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 ===== test_call_mt2
 - Total time passed: 0.000000 s
@@ -1233,7 +1233,7 @@
 ===== test_call_mt2: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 ===== test_call_mo_to_unknown
 - Total time passed: 0.000000 s
@@ -1618,7 +1618,7 @@
 ===== test_call_mo_to_unknown: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 ===== test_call_mo_to_unknown_timeout
 - Total time passed: 0.000000 s
@@ -1999,8 +1999,8 @@
 ===== test_call_mo_to_unknown_timeout: SUCCESS
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19
 
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
-talloc_total_blocks(tall_bsc_ctx) == 17
+talloc_total_blocks(tall_bsc_ctx) == 19