ti-pru-sw-edma-driver: Port PRU SW edma driver from Arago
ti-pru-sw-edma-driver: Port PRU SW edma driver from Arago

* Add PRU SW edma driver recipe for the omapl138 machines

* This recipe builds and installs an edma driver module that supports the
  edma user space libraries built by the ti-pru-sw-edma-library recipe.

Signed-off-by: Franklin S. Cooper Jr <b8c01a1703dc362919183054a071c1f348818c23@ti.com>
Signed-off-by: Denys Dmytriyenko <d29de71aea38aad3a87d486929cb0aad173ae612@ti.com>

tylerwhall/meta-ti,RedFIR/meta-ti,tylerwhall/meta-ti,rcn-ee/meta-ti,treideme/meta-ti-rt,rcn-ee/meta-ti,Angstrom-distribution/meta-ti,rcn-ee/meta-ti,tylerwhall/meta-ti,tylerwhall/meta-ti,joelagnel/meta-ti,smoosvi/Test4,floft/meta-ti,RedFIR/meta-ti,joelagnel/meta-ti,smoosvi/Test4,joelagnel/meta-ti,rcn-ee/meta-ti,joelagnel/meta-ti,jumpnow/meta-ti,RedFIR/meta-ti,Angstrom-distribution/meta-ti,treideme/meta-ti-rt,floft/meta-ti,RedFIR/meta-ti,jumpnow/meta-ti