build: Add Qualcomm's helper macros

 * This is used everywhere in Qualcomm's code. There's no reason we need
   to constantly replace it with uglier stuff in our Makefiles.

Change-Id: I0183a338470ec96a38f356a47bae65a0d3fb2c95
Build: Add mkapush to envsetup

  This command builds and pushes the built
  package(s) to your device.

  Usage:
    mkapush $LOCAL_PACKAGE_NAME/$LOCAL_MODULE
    (so, just the same as mka)

  Patch Set 2: Rebased.

  Patch Set 3: added a dash of black magic.
    Removed the deletion portion of the script
    Will add as it's own function.

  Patch Set 4: Fixed stupid derp of it not pushing
    single packages. (It was only working if multiple
    targets were specified.)

  Patch Set 5: le derp

Change-Id: I4ced1d1c7ceef765fe80504841dfb6d90c963cc7
Signed-off-by: KhasMek <Boushh@gmail.com>