Add galaxysmtd

Change-Id: Ic7f9ecaf803aa11966908987a935bad4e34b729f
Don't include example videos

Change-Id: If2c07f7bfc3216d0c870cc1d565813081a5cc18e
Add p4wifi

Include Galaxy Tab 2 7.0 to get pa_large-mdpi info
Add pa_large-mdpi to enable building p4wifi
Add p970