tests: run upgrade/client-upgrade on latest CentOS 7.3

Before this patch, all centos jobs were failing because there are no longer any
CentOS 7.2 machines in Sepia.

Signed-off-by: Nathan Cutler <ncutler@suse.com>

diff --git a/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos.yaml b/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos.yaml
new file mode 120000 (symlink)
index 0000000..9581aea
--- /dev/null
+++ b/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos.yaml
@@ -0,0 +1 @@
+../../../../../../distros/all/centos.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos_7.2.yaml b/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos_7.2.yaml
deleted file mode 120000 (symlink)
index b65da06..0000000
--- a/qa/suites/upgrade/client-upgrade/firefly-client-x/basic/distros/centos_7.2.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../distros/all/centos_7.2.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos.yaml b/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos.yaml
new file mode 120000 (symlink)
index 0000000..9581aea
--- /dev/null
+++ b/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos.yaml
@@ -0,0 +1 @@
+../../../../../../distros/all/centos.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos_7.2.yaml b/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos_7.2.yaml
deleted file mode 120000 (symlink)
index b65da06..0000000
--- a/qa/suites/upgrade/client-upgrade/hammer-client-x/basic/distros/centos_7.2.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../distros/all/centos_7.2.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos.yaml b/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos.yaml
new file mode 120000 (symlink)
index 0000000..9581aea
--- /dev/null
+++ b/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos.yaml
@@ -0,0 +1 @@
+../../../../../../distros/all/centos.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos_7.2.yaml b/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos_7.2.yaml
deleted file mode 120000 (symlink)
index b65da06..0000000
--- a/qa/suites/upgrade/client-upgrade/infernalis-client-x/basic/distros/centos_7.2.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../../distros/all/centos_7.2.yaml
\ No newline at end of file