lttng-modules: update to v2.13.9

lttng-modules: update to v2.13.9

Bumping lttng-modules to version v2.13.9-4-g12f43cab, which comprises the following commits:

    da1f5a26 Version 2.13.9
    dc2d1294 fix: jbd2: use the correct print format (v5.4.229)
    d04c1211 fix: jbd2 upper bound for v5.10.163
    4b8864fc fix: jbd2: use the correct print format (v5.10.163)
    69d3aa79 fix: btrfs: move accessor helpers into accessors.h (v6.2)

We drop our previously backported commits as well, since they are part
of the release.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>