ci pipeline for clang-analyzer

Hi All,

I tried to setup a pipeline for clang-analyzer so that all of us
interested can get the test result from latest linux-next. The build
with "defconfig" timedout but "tinyconfig" does work. You can see the
one from next-20201007 at [1].

Next, I will try to:
1) set up a cron job so that the pipeline starts as soon as linux-next
is published
2) set a pipeline for arm64. looks like travis supports arm64.
3) Add the report-generator to the image.
4) Check if I can push the generated report to a github page.


[1].
https://travis-ci.org/github/sudipm-mukherjee/linux-test/builds/733790131


-- 
Regards
Sudip