crosvm: enable MESA_DISK_CACHE_DATABASE
crosvm: enable MESA_DISK_CACHE_DATABASE

Mesa DB cache is a single-file shader cache with less wasted space and
support for shader cache file size limitation.

We want this DB cache so that we can take advantage of more efficient
shader cache that respects shader cache file size limit.

BUG=b:245831076
TEST=`vmc launch borealis` then see mesa_cache_db directory under
/run/daemon-store/crosvm

Change-Id: Ib8576bcd8ccebaf4834948c8a140b0b3a7a61124
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3931567
Commit-Queue: Max Lee <91a9451a14aae064050d8873bce3287b2c995b3d@google.com>
Reviewed-by: Renato Pereyra <d35d26b1ff017c5eaeb556c7122af4363bb02ead@google.com>
Reviewed-by: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>
Reviewed-by: Yiwei Zhang <8740d9f1664e48d07df551c300bbdb1ae03f6b48@chromium.org>

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