When running the system emulation test case, do not include python3 or
pexpect in the image. The test cases that use these also need gdb (with
python configured).
(From OE-Core rev: 7e5be0803ea0cbfd8e5b052e43b54e16ab3230ed)
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>