Commits
Ramesh Chandrasekaran committed 1acc5559d9c
snowball: Clear UART RX FIFO Without usb-serial cable plugged at this stage, some garbage is seen in UART RX FIFO, which blocks autoboot progress. The fix makes sure to empty the RX FIFO, before we wait for user input to interrupt autoboot. Signed-off-by: Ramesh Chandrasekaran <ramesh.chandrasekaran@stericsson.com>