Use hardfloat tuning for Overo.
Use hardfloat tuning for Overo.

Recent SGX binaries are provided in hardfloat mode only so we need
to be building in hardfloat mode to use these binaries.

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

gumstix/meta-gumstix,gumstix/meta-gumstix,scottellis/meta-gumstix,gumstix/meta-gumstix,scottellis/meta-gumstix