qa/tests: added supported distor for powercycle suite

Signed-off-by: Yuri Weinstein <yweinste@redhat.com>

diff --git a/qa/suites/powercycle/osd/supported-all-distro b/qa/suites/powercycle/osd/supported-all-distro
new file mode 120000 (symlink)
index 0000000..7901047
--- /dev/null
+++ b/qa/suites/powercycle/osd/supported-all-distro
@@ -0,0 +1 @@
+../../../distros/supported-all-distro/
\ No newline at end of file