The patch introduces the CRITICAL feature of POST tests. If the test marked as POST_CRITICAL fails then the alternative, post_critical, boot-command is used. If this command is not defined then U-Boot enters into interactive mode.
Signed-off-by: NDmitry Rakhchev <rda@emcraft.com>
Signed-off-by: NYuri Tikhonov <yur@emcraft.com>