wand: Fix second UART module, remove unneeded internal pull-up
wand: Fix second UART module, remove unneeded internal pull-up

MODULE_UART should be used for console UART, and MODULE_USART for
all secondary ones (like EC-EC side channel).

BRANCH=none
BUG=b:66575472
TEST=Flash wand, EC-EC communication works

Change-Id: I241bad7902c2e7228783ae1aa9cc33ad5da2c8a2
Signed-off-by: Nicolas Boichat <f3daba1cdc403799935674d3cd4b0e5bd1804232@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/958813
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Reviewed-by: Furquan Shaikh <6be5c96c464778f89679b1062a2e0a6af93d2aa5@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec