Security update for qemu

This update for qemu fixes the following issues: Update to version 8.2.5: target/loongarch: fix a wrong print in cpu dump ui/sdl2: Allow host to power down screen target/i386: fix SSE and SSE2 feature check target/i386: fix xsave.flat from kvm-unit-tests disas/riscv: Decode all of the pmpcfg and...