Add a new include file for new framework homescreen

Add a new include file for new framework homescreen

    Rename old libhomescreen_git.bb to libhomescreen-old.inc for old homscreen.
    Add a new include file named libhomescreen-2017.inc for new framework homescreen.
    In the libhomescreen_git.bb 'require' the respective include file based on
    DISTRO_FEATURES contains " agl-hmi-framework " or not.

    [Patch Sets 5]
    Follow Jan-Simon comments, add new include file.
    Change old include file SRCREV to old revison.
    <f5c14333d2170ae9babed53ea530828569a830ff>

    [Patch Sets 6]
    Change libhomescreen-2017.inc SRCREV to master revison.
    <390902a6b002c6af183c939749fdebfcc4b3e839>

BUG-AGL: SPEC-993
Change-Id: I4789a25d1079b99fe35917446227bc5ef773dd46
Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>