qa/suites: test upgrade/octopus-x on focal instead bionic

so we can solely build on focal in future once all other bionic facets
in qa/ is removed or replaced.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_18.04.yaml b/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_18.04.yaml
deleted file mode 120000 (symlink)
index cfb85f1..0000000
--- a/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_18.04.yaml
+++ /dev/null
@@ -1 +0,0 @@
-.qa/distros/all/ubuntu_18.04.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_20.04.yaml b/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_20.04.yaml
new file mode 120000 (symlink)
index 0000000..1629648
--- /dev/null
+++ b/qa/suites/upgrade/octopus-x/stress-split-erasure-code-no-cephadm/ubuntu_20.04.yaml
@@ -0,0 +1 @@
+.qa/distros/all/ubuntu_20.04.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_18.04.yaml b/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_18.04.yaml
deleted file mode 120000 (symlink)
index cfb85f1..0000000
--- a/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_18.04.yaml
+++ /dev/null
@@ -1 +0,0 @@
-.qa/distros/all/ubuntu_18.04.yaml
\ No newline at end of file

diff --git a/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_20.04.yaml b/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_20.04.yaml
new file mode 120000 (symlink)
index 0000000..1629648
--- /dev/null
+++ b/qa/suites/upgrade/octopus-x/stress-split-no-cephadm/ubuntu_20.04.yaml
@@ -0,0 +1 @@
+.qa/distros/all/ubuntu_20.04.yaml
\ No newline at end of file