kata-deploy: Expose /host to the daemon-set

We'll need to have access to the host os-release file (either under
`/etc/os-release` or under `/usr/lib/os-release`), and the simplest
approach that comes to my mind to do is doing what a debug pod would do,
mounting `/` as `/host` and then allowing us to have access to those
files, and then corectly set the TDX specific QEMU and OVMF (TDVF) paths
for the tdx available configurations.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

tools/packaging/kata-deploy/kata-deploy/base/kata-deploy.yaml

@@ -58,6 +58,8 @@ spec:
               mountPath: /opt/kata/
             - name: local-bin
               mountPath: /usr/local/bin/
+            - name: host
+              mountPath: /host/
       volumes:
         - name: crio-conf
           hostPath:
@@ -72,6 +74,9 @@ spec:
         - name: local-bin
           hostPath:
             path: /usr/local/bin/
+        - name: host
+          hostPath:
+            path: /
   updateStrategy:
     rollingUpdate:
       maxUnavailable: 1