openpower-hw-diags/libhei: disable building CI test cases

The CI test cases can be run in the Jenkins CI process and do not need
to be built via bitbake.

Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
Change-Id: Ib6d0b4a79d68c41246d94ba67c9ecbcb112e20b2
diff --git a/meta-openpower/recipes-phosphor/logging/openpower-libhei_git.bb b/meta-openpower/recipes-phosphor/logging/openpower-libhei_git.bb
index d45d95f..14e55d1 100644
--- a/meta-openpower/recipes-phosphor/logging/openpower-libhei_git.bb
+++ b/meta-openpower/recipes-phosphor/logging/openpower-libhei_git.bb
@@ -18,3 +18,6 @@
 
 DEPENDS = "libxml2-native libxml-simple-perl-native libjson-perl-native"
 
+# Don't build CI tests
+EXTRA_OEMESON = "-Dtests=disabled"
+