chardev: set record/replay on the base device of a muxed device

chardev: set record/replay on the base device of a muxed device

chardev events to a muxed device don't get recorded because e.g.,
qemu_chr_be_write() checks whether the base device has the record flag
set.

This can be seen when replaying a trace that has characters typed into
the console, an examination of the log shows they are not recorded.

Setting QEMU_CHAR_FEATURE_REPLAY on the base chardev fixes the problem.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20240813050638.446172-8-npiggin@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240813202329.1237572-16-alex.bennee@linaro.org>