doc: imx: misc: Reorganize miscellaneous documentation

The Serial Download Protocol feature is availible in various
i.MX SoCs.

Move README.sdp document to imx/misc directory.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
This commit is contained in:
Breno Matheus Lima 2018-10-10 01:10:48 +00:00 committed by Stefano Babic
parent dfe9ff9cc7
commit 29530093ff