tree e813f9af1376e087e355e8b276a1a543f1cfc544
parent 33311b47b3b656cfc16568b4b971730cb79130bc
author Patrick Venture <venture@google.com> 1561770529 -0700
committer Patrick Venture <venture@google.com> 1562178588 -0700

build: prevent enabling aspeed and nuvoton

Tested: Verified that enabling both would fail to configure.
Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I3d85aeb0e4fe021eadf08cdb6b08bb4058e2bd44