Change default serial speed to 115200
The default serial console speed should be changed to 115200 to be more in line with current hardware.
To ensure both the boot blocks and the kernel and other functions all use the right default speed, we can use:
make.conf needs: BOOT_COMCONSOLE_SPEED=115200
Kernel config needs: options CONSPEED=115200
/boot.config: -S 115200 (or whatever optional speed is set by the user in the config)
Also the list of serial speeds offered in the GUI should be reversed with 115200 at the top and proceeding in descending order.