Fix errors in Phone application dependency

Fix errors in Phone application dependency

Dependency error potentially possessed by the Phone application became obvious
by fab778caff2041794814df54b51893965381aa66.
After that change, qtmultimedia was not installed in agl-demo-platform.
This problem has been reported by SPEC-1596, but has not been fixed so far.
This patch enables the phone application to work again.

BUG-AGL: SPEC-1596

Change-Id: I1ac4eda4e5e31c51a1ab97ba8e748b56265a8c30
Signed-off-by: Naoto Yamaguchi <i33399_YAMAGUCHI@aisin-aw.co.jp>