ft2232_spi: Fix order issue with setting interface. BRANCH=none BUG=chromium:416493 TEST=manual, - start servod sudo servod -b rambi & - enable servo V2 spi1 buffers and vref dut-control spi1_vref:pp3300 spi1_buf_en:on - execute discovery via flashrom sudo flashrom -p ft2232_spi:type=servo-v2,port=B # See DUT_SPI1_CLK toggle Repeat above on port=A as well. Change-Id: Ibb6bc5f2c3d01552b23da35e7fee372dce65350b Reviewed-on: https://chromium-review.googlesource.com/219348 Commit-Queue: Todd Broch <[email protected]> Tested-by: Todd Broch <[email protected]> Reviewed-by: David Hendricks <[email protected]> Reviewed-by: Max Chang <[email protected]>