qcacmn: SDIO bus support (Part 1 - HIF SDIO)

Add legacy hif sdio code.
Implement new hif sdio interfaces with respect to new hif design.
Add datapath to HIF interfaces.
Refactor hif-sdio codebase.
Remove references to older kernel version.

Change-Id: Ieca3e512edca5f960d6f2b64d15121db6c8138c7
CRs-Fixed: 969334
27 files changed
tree: 5476b39275f43bc15b678572f6e1557ae86c906f
  1. dp/
  2. hif/
  3. htc/
  4. qdf/
  5. wmi/
  6. README.txt
  7. VERSION.txt