arm: dts/revpi-con-can: Remove pincontrol references for can0 [REVPI-1921]

Created by: nbuchwitz

Remove pincontrol reference for <&conbridge_int_pins> in order to restore the con can module functionality, which worked before these changes. conbridge_int_pins is defined in revpi-connect-overlay.dts and therefore not exported to the symbols table. This results in the following error when the overlay is loaded:

OF: resolver: node label 'conbridge_int_pins' not found in live devicetree symbols table

This partialy reverts commit 164a3d73

Signed-off-by: Nicolai Buchwitz n.buchwitz@kunbus.com