Enable softfloat by default on PowerPC

This should probably be replaced by a configure switch.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4169 c046a42c-6fe2-441c-8c8c-71466251a162