tests: use 'check_PROGRAMS' instead of 'noinst_PROGRAMS'

When using 'check_PROGRAMS', autoconf/automake generates smarter
Makefiles, so that the test programs are not being compiled during
the normal 'make all', but only during 'make check'.

Change-Id: I8118ee3d3da9bdcd0c691471ef91b95dba21004a
diff --git a/tests/gprs/Makefile.am b/tests/gprs/Makefile.am
index 902313f..f90fd6e 100644
--- a/tests/gprs/Makefile.am
+++ b/tests/gprs/Makefile.am
@@ -3,7 +3,7 @@
 
 EXTRA_DIST = gprs_test.ok
 
-noinst_PROGRAMS = gprs_test
+check_PROGRAMS = gprs_test
 
 gprs_test_SOURCES = gprs_test.c $(top_srcdir)/src/gprs/gprs_utils.c
 
diff --git a/tests/gtphub/Makefile.am b/tests/gtphub/Makefile.am
index fea01e0..6bb1a56 100644
--- a/tests/gtphub/Makefile.am
+++ b/tests/gtphub/Makefile.am
@@ -16,7 +16,7 @@
 	gtphub_test.ok \
 	$(NULL)
 
-noinst_PROGRAMS = \
+check_PROGRAMS = \
 	gtphub_test \
 	$(NULL)
 
diff --git a/tests/sgsn/Makefile.am b/tests/sgsn/Makefile.am
index bdf941d..72a7714 100644
--- a/tests/sgsn/Makefile.am
+++ b/tests/sgsn/Makefile.am
@@ -25,7 +25,7 @@
 	sgsn_test.ok \
 	$(NULL)
 
-noinst_PROGRAMS = \
+check_PROGRAMS = \
 	sgsn_test \
 	$(NULL)
 
diff --git a/tests/slhc/Makefile.am b/tests/slhc/Makefile.am
index b6738c2..0167f44 100644
--- a/tests/slhc/Makefile.am
+++ b/tests/slhc/Makefile.am
@@ -3,7 +3,7 @@
 
 EXTRA_DIST = slhc_test.ok
 
-noinst_PROGRAMS = slhc_test
+check_PROGRAMS = slhc_test
 
 slhc_test_SOURCES = slhc_test.c
 
diff --git a/tests/sndcp_xid/Makefile.am b/tests/sndcp_xid/Makefile.am
index 24626b3..4513c05 100644
--- a/tests/sndcp_xid/Makefile.am
+++ b/tests/sndcp_xid/Makefile.am
@@ -3,7 +3,7 @@
 
 EXTRA_DIST = sndcp_xid_test.ok
 
-noinst_PROGRAMS = sndcp_xid_test
+check_PROGRAMS = sndcp_xid_test
 
 sndcp_xid_test_SOURCES = sndcp_xid_test.c
 
diff --git a/tests/v42bis/Makefile.am b/tests/v42bis/Makefile.am
index 7442392..56b31f6 100644
--- a/tests/v42bis/Makefile.am
+++ b/tests/v42bis/Makefile.am
@@ -3,7 +3,7 @@
 
 EXTRA_DIST = v42bis_test.ok
 
-noinst_PROGRAMS = v42bis_test
+check_PROGRAMS = v42bis_test
 
 v42bis_test_SOURCES = v42bis_test.c
 
diff --git a/tests/xid/Makefile.am b/tests/xid/Makefile.am
index 6f058f5..d3c205e 100644
--- a/tests/xid/Makefile.am
+++ b/tests/xid/Makefile.am
@@ -15,7 +15,7 @@
 	xid_test.ok \
 	$(NULL)
 
-noinst_PROGRAMS = \
+check_PROGRAMS = \
 	xid_test \
 	$(NULL)