qa/distros/supported: update ubuntu_latest.yaml and add ubuntu_20.04.yaml

Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit 929172bd718bdc45f796ad52c64dd42c1bc70a9a)

diff --git a/qa/distros/supported/ubuntu_20.04.yaml b/qa/distros/supported/ubuntu_20.04.yaml
new file mode 120000 (symlink)
index 0000000..75d907e
--- /dev/null
+++ b/qa/distros/supported/ubuntu_20.04.yaml
@@ -0,0 +1 @@
+../all/ubuntu_20.04.yaml
\ No newline at end of file

diff --git a/qa/distros/supported/ubuntu_latest.yaml b/qa/distros/supported/ubuntu_latest.yaml
index 75d907e3b9cf89b29f9582831cfc1fa1ada69533..cfcd0d1a826a527a4e08e1eb40ed20fe03d44acd 120000 (symlink)
--- a/qa/distros/supported/ubuntu_latest.yaml
+++ b/qa/distros/supported/ubuntu_latest.yaml
@@ -1 +1 @@
-../all/ubuntu_20.04.yaml
\ No newline at end of file
+../all/ubuntu_latest.yaml
\ No newline at end of file