Add hardware info for tilapia

Change-Id: I5ead81c09e6658b6312f81346856cefc465ada6a
Add default APN for AT&T

Change-Id: I7c062dc13ebe597fa9358fc906d6cf3e26c40b71
tilapia: enable USB OTG storage

Require grouper changes found at http://review.cyanogenmod.org/#/c/29283/

Change-Id: If1f7c3eccafddc11a5f11595544e25307d054325
tilapia: enable Tethering & portable hotspot

    Wifi Tethering - works
    USB Tethering - works

    USB Tethering Depends on
    http://review.cyanogenmod.org/#/c/29170/
    http://review.cyanogenmod.org/#/c/29169/

    USB Tethering on Ubuntu - Works as it is
    USB Tethering on Windows-based PC - Requires one time installation
    of driver. Instructions to install NDIS Driver on Windows PC
    - http://goo.gl/KnnhJ

Patchset 4: Remove Bluetooth.  This doesn't work yet.  Add it later

Change-Id: Iedd2895bab08b54f41af7eaa921f29691a84364d
Add Apn file

Pulled from tilipia dump

Change-Id: I20016daff072ae6aad85a9f512546f75102d9101