dt-bindings: net: altr,tse: Fix error in "compatible" conditional schema

The conditional if/then schema has an error as the "enum" values have
"const" in them. Drop the "const".

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230621231012.3816139-1-robh@kernel.org


Signed-off-by: Paolo Abeni <pabeni@redhat.com>