Make lmkd dynamically linked

Statically linked binaries cannot take advantage of ASLR,
making them less secure.

In addition, statically linked binaries consume more ram,
because shared libraries cannot be reused.

  executable size before: 87728
  executable size after:  13656

Change-Id: I9d02d865f9beeaaaadcd5009f64ac015931d4b11