xen/x86: fix QA errors

The xen version bump brought in these QA errors:

  ERROR: xen-tools-4.21+stable-r0 do_package: QA Issue: xen-tools: Files/directories were installed but not shipped in any package:
    /usr/lib/xen/tests/test_x86_emulator
    /usr/lib/xen/tests/test-cpu-policy
    /usr/lib/xen/tests/test-tsx
  Please set FILES such that these items are packaged. Alternatively if they are unneeded, avoid installing them or delete them within do_install.
  xen-tools: 3 installed and not shipped files. [installed-vs-shipped]
  ERROR: xen-tools-4.21+stable-r0 do_package: Fatal QA errors were found, failing task.
  ERROR: Logfile of failure stored in: build/tmp/work/x86-64-v3-poky-linux/xen-tools/4.21+stable/temp/log.do_package.2597669
  ERROR: Task (meta-virtualization/recipes-extended/xen/xen-tools_4.21.bb:do_package) failed with exit code '1'
  NOTE: Tasks Summary: Attempted 4228 tasks of which 4210 didn't need to be rerun and 1 failed.

We package two of the new files, and delete one host-compiled tool that
isn't used.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

recipes-extended/xen/xen-tools.inc

@@ -735,6 +735,8 @@ FILES:${PN}-test += "\
     ${libdir}/xen/tests/test_vpci \
     ${libdir}/xen/tests/test-pdx-offset \
     ${libdir}/xen/tests/test-pdx-mask \
+    ${libdir}/xen/tests/test-cpu-policy \
+    ${libdir}/xen/tests/test-tsx \
     "
 
 # test-xenstore and test-resource currently only exist in 4.16
@@ -830,6 +832,9 @@ do_install() {
         ${localstatedir}/lib/xen \
         "
 
+    # a host tool that is unused
+    rm -rf ${D}${libdir}/xen/tests/test_x86_emulator
+
     # install volatiles using populate_volatiles mechanism
     install -d ${D}${sysconfdir}/default/volatiles
     for i in $VOLATILE_DIRS; do