witherspoon-tacoma machine support

The tacoma image requires a different target due to the way it is loaded
from flash currently.

Tested:
Verified for witherspoon-tacoma:
    "bitbake aspeed-image-norootfs obmc-phosphor-debug-tarball"
Verified for witherspoon:
    "bitbake obmc-phosphor-image obmc-phosphor-debug-tarball"
Verified aspeed-norootfs-witherspoon-tacoma.bin generated when target is
witherspoon-tacoma

Change-Id: Ia568f0f12da80be4532ec052a05a96e19b717f3c
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
1 file changed