configs/qemu_*: bump kernel version to 5.4.58

Bump configs/qemu_* to latest longterm kernel 5.4.42.

All defconfig using a specific kernel version (csky, risc32) are not
taken into account.

Build and runtime tested: https://gitlab.com/jugurthaB/buildroot/-/pipelines/177882458



Signed-off-by: Jugurtha BELKALEM <jugurtha.belkalem@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>