qa/caasp: switch to sle_15.2

diff --git a/qa/suites/caasp/distros/sle_15.1.yaml b/qa/suites/caasp/distros/sle_15.1.yaml
deleted file mode 120000 (symlink)
index c6791f5..0000000
--- a/qa/suites/caasp/distros/sle_15.1.yaml
+++ /dev/null
@@ -1 +0,0 @@
-.qa/distros/all/sle_15.1.yaml
\ No newline at end of file

diff --git a/qa/suites/caasp/distros/sle_15.2.yaml b/qa/suites/caasp/distros/sle_15.2.yaml
new file mode 120000 (symlink)
index 0000000..afb5ae4
--- /dev/null
+++ b/qa/suites/caasp/distros/sle_15.2.yaml
@@ -0,0 +1 @@
+.qa/distros/all/sle_15.2.yaml
\ No newline at end of file