chameleon: Remove cryptography requirement from cyclone5(fpga)

cryptography is for bluetooth(raspberry-pi) only. Remove this
requirement from cyclone5(fpga) to fix the deploy error.

BUG=b:238846425
TEST=make remote-install CHAMELEON_HOST={IP}

Change-Id: I14d78684b29d9fba31d759757aa659c1f2e360c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/3760310
Reviewed-by: Shyh-In Hwang <josephsih@chromium.org>
Auto-Submit: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Tested-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Commit-Queue: Yu-Hsuan Hsu <yuhsuan@chromium.org>
2 files changed