klte-common: Clean up camera wrapper code

* Make static functions static
* Code formatting
* Standardize function signatures

Change-Id: I2396073069e7bf21fcc85d7272865a1a59600f3b
klte-common: Move camera target to device repos

Change-Id: I448ab54e3f7490ff18a0e14cb5b36c4584a29112
klte-common: Add missing libxml2 library

Change-Id: Ie2be43105e77b9d61697b423ab8a42422c82481a
klte-common: update fstab

Change-Id: I15d9f6cbfcf1ba3b489570934276b1174af56065