doc: cleanup - move board READMEs into respective board directories
Also drop a few files referring to no longer / not yet supported
boards.
Signed-off-by: Wolfgang Denk <[email protected]>
Cc: Prafulla Wadaskar <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Andy Fleming <[email protected]>
Cc: Jason Jin <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Daniel Schwierzeck <[email protected]>
Acked-by: Stefano Babic <[email protected]>
Acked-by: Daniel Schwierzeck <[email protected]>