[nrf][i2c] Fix second i2c module instance
[nrf][i2c] Fix second i2c module instance

Second TWIM module did not have correct instance number.
Removed leftover dprintf.

travisg/lk,littlekernel/lk,littlekernel/lk,hollanderic/lkstuff,travisg/lk,travisg/lk,littlekernel/lk,hollanderic/lkstuff,littlekernel/lk,hollanderic/lkstuff,travisg/lk,hollanderic/lkstuff