Patch from Nicolas Pitre

It appears that the EF_ARM_SOFT_FLOAT is a reserved bit with the new
ARM EABI.  Since EABI is said to not support FPA (FPA emulation being
the reason why we'd want to disable iWMMXt access) we now test for any
EABI version as well to turn on iWMMXt access.

Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King