ptest-runner: Backport patch to fix inappropriate ioctl error

The srcrev bump is actually bring single commit [1] on top of 2.4.0 which fixes ptest
runs with messges like

ERROR: Unable to detach from controlling tty, Inappropriate ioctl for device

[1] https://git.yoctoproject.org/cgit/cgit.cgi/ptest-runner2/commit/?id=834670317bd3f6e427e1ac461c07ada6b8936dfd



Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>