omap3-isp-live: Make package machine specific
omap3-isp-live: Make package machine specific

Set the PACKAGE_ARCH so this package is exclusive to the Overo package
feed.  COMPATIBLE_MACHINE only controls building---it doesn't restrict
installation of an already-built package on a potentially incompatible
machine.

Signed-off-by: Ash Charles <80cee6ff557ba1c5981cd5d98755c09f634abbac@gmail.com>

allsey87/meta-bebot-temp,gumstix/meta-gumstix-extras,gumstix/meta-gumstix-extras,gumstix/meta-gumstix-extras,allsey87/meta-bebot-temp,allsey87/meta-bebot-temp