pil-squasher: add recipe
pil-squasher: add recipe

Add recipe for a tool to convert a split firmware image (mdt + bXX
files) into a single mbn firmware image, preserving signature et al.

Signed-off-by: Dmitry Baryshkov <2dcd7ecf02101ef1dca344c0511f3ffb180907c2@linaro.org>

ndechesne/meta-qcom,ndechesne/meta-qcom,ndechesne/meta-qcom