libffi: upgrade 3.4.2 -> 3.4.4

3.4.4 Oct-23-2022
    Important aarch64 fixes, including support for linux builds
      with Link Time Optimization (-flto).
    Fix x86 stdcall stack alignment.
    Fix x86 Windows msvc assembler compatibility.
    Fix moxie and or1k small structure args.

3.4.3 Sep-19-22
    All struct args are passed by value, regardless of size, as per ABIs.
    Enable static trampolines for Cygwin.
    Add support for Loongson's LoongArch64 architecture.
    Fix x32 static trampolines.
    Fix 32-bit x86 stdcall stack corruption.
    Fix ILP32 aarch64 support.

License-Update: copyright years

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit 5b42ba98)
Signed-off-by: Steve Sakoman <steve@sakoman.com>