libqofono: add missing dependency on qtdeclarative

* fixes do_configure failure:
  | Project ERROR: Unknown module(s) in QT: qml
* fix missing $ in PACKAGES variable, fixes QA warning
  WARNING: QA Issue: libqofono: Files/directories were installed but not shipped
  /lib/libqofono-qt5/tests/tst_qofonocallvolume
  /lib/libqofono-qt5/tests/tst_qofonovoicecallmanager
  /lib/libqofono-qt5/tests/tst_qofonosupplementaryservices
  /lib/libqofono-qt5/tests/tst_qofonoconnmancontext
  /lib/libqofono-qt5/tests/tst_qofonomanager
  /lib/libqofono-qt5/tests/tst_qofonocallbarring
  /lib/libqofono-qt5/tests/tst_qofonocellbroadcast
  /lib/libqofono-qt5/tests/tst_qofonoconnman
  /lib/libqofono-qt5/tests/tst_qofonocallmeter
  /lib/libqofono-qt5/tests/tst_qofonosimmanager
  /lib/libqofono-qt5/tests/tst_qofonomultipartycall
  /lib/libqofono-qt5/tests/tst_qofonoradiosettings
  /lib/libqofono-qt5/tests/tst_qofononetworkoperator
  /lib/libqofono-qt5/tests/tst_qofonomessagemanager
  /lib/libqofono-qt5/tests/tst_qofonomodem
  /lib/libqofono-qt5/tests/tst_qofonophonebook
  /lib/libqofono-qt5/tests/tst_qofonocallsettings
  /lib/libqofono-qt5/tests/tst_qofononetworkregistration
  /lib/libqofono-qt5/tests/tst_qofonocallforwarding
  /lib/libqofono-qt5/tests/tst_qofonovoicecall
  /lib/libqofono-qt5/tests/tst_qofonotest-qt5
  /lib/libqofono-qt5/tests/tst_qofonomessagewaiting

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>