qemu: Update to version 6.1.0

qemu: Update to version 6.1.0

- Update from 5.2.0 to 6.1.0
- Update of rootfile
- Removal of --no-pie patch as the changes are now built into the qemu source files
- Changelog is too long to fully include here. Full details can be read at
   https://wiki.qemu.org/ChangeLog/
   Following are the deprecated options and features from each version.
   6.1.0
    Using non-persistent backing file with pmem=on is now deprecated.
    '-display sdl,window_close=...' should be replaced with '-display sdl,window-close=...'
     (i.e. with a minus instead of an underscore between “window” and “close”).
    '-no-quit' is deprecated. '-display ...,window-close=off' should be used instead.
    The Aspeed swift-bmc machine is deprecated and should be replaced by the
     witherspoon-bmc or the romulus-bmc machines.
   6.0.0
    The --enable-fips option has been deprecated. Consumers wishing to have FIPS
     compliance must build QEMU with libcrypt and gnutls, NOT nettle.
    The -writeconfig option has been deprecated. The functionality of -writeconfig is
     limited and the code does not even try to detect cases where it prints incorrect
     syntax (for example if values have a quote in them). It will be removed without
     replacement.
    Boolean parameters such as share=on / share=off could be written in short form as
     share and noshare. This is now deprecated and will cause a warning.
    -chardev backend aliases tty and parport are aliases that will be removed. Instead,
     the actual backend names serial and parallel should be used.
    The delay option for socket character devices is now deprecated.
    Userspace local APIC with KVM (-M kernel-irqchip=off)
    hexadecimal sizes with scaling multipliers (e.g. 0x20M)
    -spice password=string is deprecated now. Use password-secret option instead.
    opened property of rng-* objects
    loaded property of secret and secret_keyring
    MIPS Trap-and-Emulate KVM support

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>