dt-bindings: connector: Replace BIT macro with generic bit ops

BIT macro is not defined. Replace it with generic bit operations.

Fixes: 630dce28

 ("dt-bindings: connector: Add SVDM VDO properties")
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210527121029.583611-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>