Add test run into metadata

tmt would not find those data as tests.

Sanity/CAA-support/main.fmf

@@ -5,3 +5,4 @@ duration: 10m
 relevancy: |
     distro = rhel-4, rhel-5: False
 summary: sanity testing of CAA support
+test: make run

Sanity/Master-server-chrooted-reverse-lookup/main.fmf

@@ -9,3 +9,4 @@ duration: 5m
 relevancy: |
     distro > rhel-6 && product != rhscl: False
 summary: Set up master nameserver in chrooted env, test it.
+test: make run

Sanity/Master-server-chrooted/main.fmf

@@ -9,3 +9,4 @@ duration: 25m
 relevancy: |
     distro > rhel-6 && product != rhscl: False
 summary: Set up master nameserver in chrooted env, test it.
+test: make run

Sanity/Master-server-not-chrooted-reverse-lookup/main.fmf

@@ -8,3 +8,4 @@ description: |4
 duration: 150m
 relevancy: ''
 summary: Set up master nameserver, test it.
+test: make run

Sanity/Master-server-not-chrooted/main.fmf

@@ -8,3 +8,4 @@ description: |4
 duration: 90m
 relevancy: ''
 summary: Set up master nameserver in chrooted env, test it.
+test: make run

Sanity/Run-internal-BIND-test-suite/main.fmf

@@ -7,3 +7,4 @@ description: |+
 duration: 8h
 relevancy: ''
 summary: Run internal BIND test suite
+test: make run