kvmtool: bump to faae833a74

Upstream Commit:
Fri Mar 18 20:49:38 2022 +0000
Revert "kvm tools: Filter out CPU vendor string"

Update kvmtool package to latest upstream commit. A lot has
changed from last update on various fronts such as arm64, vfio
device assignment, etc.

Change-Id: I616542765adf2b65df4dae7c1cc51e1695012575
Signed-off-by: Vivek Gautam <vivek.gautam@arm.com>