[U-Boot] Missing flush_cache in do_load function

[Borsodi Petr]

Hi all,

I found a problem with load command on ARM based board. When I load hello_world standalone application using filesystem load command, the u-boot crashes. Loading with loads is OK.
I think that the problem is caused by cache inconsistency. If I add calling the flush_cache function, problem is solved.

Petr Borsodi