Restore libhomescreen-old.inc to libhomescreen_git.bb, but use fix SRCREV.
Change libhomescreen-2017.inc to libhomescreen-2017_git.bb.
Add PROVIDES into bb files for switch libhomescreen.
These is another commit in meta-agl-devel set PREFERRED_PROVIDER.
Related commit:
https://gerrit.automotivelinux.org/gerrit/#/c/11761/
Change-Id: I2eadc3c703f220f286e8ffa6b52276b792fc0729
Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>