selftest: build wic-tools in the Wic.setUp

Built wic-tools recipe instead of set of tools recipes
to ensure that all tools are available from one recipe sysroot.

(From OE-Core rev: 52ce14d5ea667ffd319fdb3e147b6eb29505cf8e)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/wic.py

@@ -51,8 +51,7 @@ class Wic(oeSelfTest):
         # clean up which can result in the native tools built earlier in
         # setUpClass being unavailable.
         if not Wic.image_is_ready:
-            bitbake('syslinux syslinux-native parted-native gptfdisk-native '
-                    'dosfstools-native mtools-native bmap-tools-native')
+            bitbake('wic-tools')
             bitbake('core-image-minimal')
             Wic.image_is_ready = True