Python3 Migration: switch to python3 on Raspberry Pi

Switch Raspberry Pi to using python3. Note that it is required
to make with the argument "PY_VERSION=python3" for now until
all other platforms have switched to python3 as well.

BUG=b:169724328
TEST=Follow the steps to make with python 3 and install.
(cr) make PY_VERSION=python3
(cr) make remote-install CHAMELEON_HOST="${RASPBERRY_IP}"
(cr) Run bluetooth_AdapterQuickHealth.AVL. All tests should pass.

Change-Id: I8661d4f2f906e9283d364e89b419b3314ee3e18b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/2575785
Reviewed-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Commit-Queue: Shyh-In Hwang <josephsih@chromium.org>
Tested-by: Shyh-In Hwang <josephsih@chromium.org>
1 file changed