650D and 700D: enable CONFIG_EDMAC_RAW_SLURP
Created originally on Bitbucket by daniel_fort (Daniel Fort)
Was already merged in Bitbucket before import, marked as merged by the import user
Copied from @dmilligan EOSM commit 193dc5989d6f Thanks to @eNnvi for finding the 700D and to Rewind for the 650D DEFAULT_RAW_BUFFER addresses