meta-openpower:meson: pkgconfig inherit required

Upstream yocto made a change recently that brought to light a bug in
some of our recipes. If your meson makefiles utilize the dependency()
function then the recipe must also include pkgconfig.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I48c062226275c6e110bde27e815d2643c369c14c
diff --git a/meta-openpower/recipes-bsp/guard/guard_git.bb b/meta-openpower/recipes-bsp/guard/guard_git.bb
index cda809e..ba649db 100644
--- a/meta-openpower/recipes-bsp/guard/guard_git.bb
+++ b/meta-openpower/recipes-bsp/guard/guard_git.bb
@@ -6,7 +6,7 @@
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://${S}/LICENSE;md5=86d3f3a95c324c9479bd8986968f4327"
 
-inherit meson
+inherit pkgconfig meson
 
 S = "${WORKDIR}/git"