[autotest] Move min_version_support_ssp check to global config.

For lab, the minimum version of CrOS build to support ssp should be 6986,
which includes following two CLs:
https://chromium-review.googlesource.com/#/c/266170/
https://chromium-review.googlesource.com/#/c/266128/

For moblab, the version is lowered to original setting, 6919, so moblab can
still test builds from R43 branch, except that it can't run paygen_au_canary
and moblab_RunSuite suites.

BUG=chromium:473970
TEST=local run_suite
./site_utils/run_suite.py --build peppy-release/R44-6983.0.0 --suite_name dummy_server --board peppy

Change-Id: I6a9096d3f5b00b554c06d4c8022d8a8f4a6bd7df
Reviewed-on: https://chromium-review.googlesource.com/266262
Trybot-Ready: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
diff --git a/moblab_config.ini b/moblab_config.ini
index e69de29..a4f35af 100644
--- a/moblab_config.ini
+++ b/moblab_config.ini
@@ -0,0 +1,8 @@
+[AUTOSERV]
+# Minimum OS version that supports server side packaging. Older builds may
+# not have server side package built or with Autotest code change to support
+# server-side packaging.
+# This build is older than the one used in global config (6986). This allows
+# moblab can still test builds in R43 branch with server-side packaging, except
+# that with it can't run paygen_au_canary and moblab_RunSuite suites.
+min_version_support_ssp: 6919
\ No newline at end of file