[U-Boot] testing x86 builds on the fly

[Mike Frysinger]

disclaimer: i have like 0 u-boot experience on x86.  but i cant find
README's in the src to answer my questions.

the PIC support on x86 is finished right ?  so does that mean we can
take a u-boot.bin, tftp it to a running system into external memory,
and then boot that on the fly purely for testing purposes ?

burning to flash is both horribly slow and dangerous :x.
-mike