klte: Skip redundant dtc build step

* Creating dtb is now done as a step of the inline kernel build.

Change-Id: I9f0689082f04999a45dfc2d62685dc342c781601
(cherry picked from commit 3d5022b0e46a7b9fd0088b7ec4703d8337090553)
klte-common: disable input filtering.

* Suppose to reduce latency.

Change-Id: I7cab9115abf600925aa02792451222db305d418b
(cherry picked from commit 15b58f07812e0fbb51bb66766bf5c67d29ef58a0)
klte-common: add kltedv to build barrier

Change-Id: I2747654e503493e4680b86753a47ddb93afb2d20
(cherry picked from commit 81f531c9cd2a75565c477ee6c2d0c64cc1153b00)
klte-common: correct deviceHardwareKeys overlay.

I have no idea where we got 19 from. This should be correct

Change-Id: If9f7be941fdf9cc035b27e05ea54d72c5a6acf15
(cherry picked from commit a82a519b6fe5da4302aa9223a16fe1ad5ddad301)
klte-common: add additional permissions to ueventd

Change-Id: I0f4a88ac271d61c2adbb5937b87de81e0c6cd9c7
(cherry picked from commit 01003f2deeb23639ee34356263331f291e58c2a1)