Falcon Mode Support For Uncompressed Kernel Images

Hi All,

While trying to bring up Falcon Mode boot on an ARM64 board, I discovered that there is no path which allows you to use an uncompressed kernel image (booti). I've added this path and attached the relevant patch.

I've made this a separate if/else CONFIG option instead of allowing both bootz+booti paths to coexist, as it seems unlikely to me that there would be such a board which needs both. Most architectures use either bootz or booti, but not both.

Sincerely, Nathan Barrett-Morrison