* inherit stx-metadata to help apply patches and
install files from stx 'upstream' repo
* remove the local copy of stx files
* update the do_install according to the spec
Story: 2008952
Task: 42576
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Change-Id: I3a03e93ddea77ce36570c081567eef0e71cb81d7