Motor driver chip is mislabelled

Created by: ElhemEnohpi

BeagleBone_Blue_sch.pdf shows "TB6621FNG" but should be "TB6612FNG".

Don't feel bad though, you're not the only one! https://github.com/sparkfun/Motor_Driver-Dual_TB6612FNG/issues/1

Created by: jadonk

@ElhemEnohpi actually, the misnaming was inherited from that one.