Add W25Q64DW write protect support

BUG=none
BRANCH=none
TEST=Verify WP functionality on Rambi

Change-Id: I219f0ed4ec9ac9407ff1f0f2f6a62cc33dab76bf
Reviewed-on: https://chromium-review.googlesource.com/181314
Tested-by: Chih-Wei Tsai <adam.tsai@quantatw.com>
Reviewed-by: Jerry W Chen <jerry.w.chen@intel.com>
Reviewed-by: Bowgo Tsai <bowgotsai@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Commit-Queue: Shawn Nematbakhsh <shawnn@chromium.org>
1 file changed