iotests: enable tests 134 and 158 to work with qcow (v1)

The 138 and 158 iotests exercise the legacy qcow2 aes encryption
code path and they work fine with qcow v1 too.
Reviewed-by: NAlberto Garcia <berto@igalia.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-id: 20170623162419.26068-16-berrange@redhat.com
Signed-off-by: NMax Reitz <mreitz@redhat.com>

tests/qemu-iotests/134

@@ -37,7 +37,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 . ./common.rc
 . ./common.filter
 
-_supported_fmt qcow2
+_supported_fmt qcow qcow2
 _supported_proto generic
 _unsupported_proto vxhs
 _supported_os Linux

tests/qemu-iotests/158

@@ -37,7 +37,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 . ./common.rc
 . ./common.filter
 
-_supported_fmt qcow2
+_supported_fmt qcow qcow2
 _supported_proto generic
 _unsupported_proto vxhs
 _supported_os Linux