dt-bindings: display: bridge: tc358867: mark port 0 and 1 configuration as valid

Current binding document enforces presence of either port@0 (DSI in) or
port@1 (DPI IN/OUT), with port@2 (DP out) being optional. This bridge is
capable of DSI->DP, DPI->DP and DPI->DP, it is therefore perfectly valid
to have both port@0 and port@1 described in the DT, because this is fairy
standard DPI->DP configuration of this bridge. Replace oneOf with anyOf
to cover this configuration.

Signed-off-by: Marek Vasut <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Rob Herring (Arm) <[e-mail]>

Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml

···
                     - 1 # 3.5dB pre-emphasis
                     - 2 # 6dB pre-emphasis
 
-    oneOf:
+    anyOf:
       - required:
           - port@0
       - required: