current board that doesn work with flto is spresense and mimxrt10xx (due to xip image_vector_table is optimized out).
While Fomu is produced by Foosn, the actual name of the hardware block is `valentyusb`. Rename the module to match that. Signed-off-by: Sean Cross <sean@xobs.io>
Signed-off-by: Sean Cross <sean@xobs.io>