build: Default to dtbToolCM

* The default dtbTool isn't the correct module name for the module that
  actually lives in device/qcom/common/dtbtool

Change-Id: I80b427e3652b99742573bc4d2829e51645a8822b
Edify: Add/Update abort messages for some asserts

* If a bootloader or baseband assert is not satisfied, print the
  versions that are supported by the package as well as the version
  on the device.
* Changes the layout of the device assert in the edify script with some
  more line breaks.
* Cleanup the device abort message and remove extra quoting.

Change-Id: I958d49281c51bd4e60d596a727bb94cfc4a21909