Boards may not have USB-PD. Remove the need for a "none" option by only adding USB-PD sources when enabled.
The resulting binary for boards with USB-PD enabled (addw3, bonw15, serw13) are identical. The binary for boards without USB-PD now have the empty calls optimized out.
Boards may not have USB-PD. Remove the need for a "none" option by only adding USB-PD sources when enabled.
The resulting binary for boards with USB-PD enabled (addw3, bonw15, serw13) are identical. The binary for boards without USB-PD now have the empty calls optimized out.