[tests] Add mce-tools dependency

Signed-off-by: Matti Kosola <matti.kosola@jolla.com>
[tests] Prepare ofono for phonesim before running tests

Signed-off-by: Matti Kosola <matti.kosola@jolla.com>
Merge pull request #47 from mkosola/master

Prepare ofono for phonesim before running tests