crosvm: vvu: proxy: Add set_mem_table size check
crosvm: vvu: proxy: Add set_mem_table size check

This change adds another metadata size check to the set_mem_table
function.

BUG=b:194136484
TEST=Test with sibling VM with Vhost master connecting to a device VM.

Change-Id: I561af017a35b2fa7ac81b9bcb1af9c6fcf63ba1f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3462647
Reviewed-by: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Commit-Queue: Abhishek Bhardwaj <4731196bfa2312dffce2e96e4b970d725db87a47@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm