[all][packaging] retain permissions of config files

Change-Id: Ifeb42478d7f7857bb593ca19bee93b066c3f9b91
Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>
[all][packaging] exclude config files you deal with manually

Change-Id: If2c83be8cca1ce8841eef51054510766edfda151
Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>