Add some more lte/3g/4g usb modem drivers

Change-Id: I2cd749c520be8ed3401992fc38c9cfeb4994c376
Revert "ext4: disable FITRIM"

This reverts commit 7c4b0f46a5a9ed6a9dd7fd91cf918e5ad1c44355.
ovation, hummingbird: Enable SELinux support in defconfig

Also xattrs on ext4 that's needed to store the selinux info

Change-Id: Idf54af79944192ef66d4ed129f7915ec3bb4e703