arch: arm: Disallow FP_HARDABI when building with TFM

When building with TFM, the app is linked with libraries built by the
TFM build system. TFM is always built with -msoft-float which is
equivalent to -mfloat-abi=soft. FP_HARDABI adds -mfloat-abi=hard
which gives errors when linking with the libs from TFM since they are
built with a different ABI.

Fixes https://github.com/zephyrproject-rtos/zephyr/issues/33956

Signed-off-by: Øyvind Rønningstad <oyvind.ronningstad@nordicsemi.no>
1 file changed