qemu: fix CVE-2023-3019

A DMA reentrancy issue leading to a use-after-free error
was found in the e1000e NIC emulation code in QEMU. This
issue could allow a privileged guest user to crash the
QEMU process on the host, resulting in a denial of service.

CVE-2023-3019-0002 is the CVE fix and CVE-2023-3019-0001
is dependent CVE fix.

fix indent issue in qemu.inc file.

CVE-2023-3019 patch required Mem ReenttranceyGuard structure
definition, it's defined in commit:
https://github.com/qemu/qemu/commit/a2e1753b8054344f32cf94f31c6399a58794a380
but the patch is causing errors:
Failed: qemux86 does not shutdown within timeout(120)
so backported only required structure definition.

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2023-3019

Upstream patches:
https://github.com/qemu/qemu/commit/7d0fefdf81f5973334c344f6b8e1896c309dff66
https://github.com/qemu/qemu/commit/3c0463a650008aec7de29cf84540652730510921



(From OE-Core rev: 3782e1b21882ffc5e4cc466418e066179470241e)

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>