tp-qemu: host-kernel: Add RHEL.6.7 host kernel config.

As there is no rhel.6.7.0 machine type, not add it in cfg.
Signed-off-by: NCong Li <coli@redhat.com>

qemu/cfg/host-kernel/Host_RHEL/6/7.cfg

+- 7:
+    host_kernel_ver_str += ".7"
+    requires_kernel = [">= 2.6.32-505", "<  2.6.32-574"]
+    machine_type = "rhel6.6.0"
+    set_link:
+        operstate_always_up = no
+    cpuinfo_query.qmachine_type:
+        cpu_info = "pc,rhel.6.6.0,rhel6.5.0,rhel6.4.0,rhel6.3.0,rhel6.2.0,rhel6.1.0,rhel6.0.0,rhel5.5.0,rhel5.4.4,rhel5.4.0"
+    Windows:
+        #hv_relaxed option is supported since RHEL.6.4
+        cpu_model_flags += ",hv_relaxed"

qemu/cfg/host-kernel/host-kernel-check.cfg

@@ -58,6 +58,9 @@ variants:
                     - 6:
                         host_kernel_ver_str += ".6"
                         requires_kernel = [">= 2.6.32-432", "<  2.6.32-505"]
+                    - 7:
+                        host_kernel_ver_str += ".7"
+                        requires_kernel = [">= 2.6.32-505", "<  2.6.32-574"]
             - 7:
                 host_kernel_ver_str += ".7"
                 variants: