phosphor-pid-control: Disable building tests

We don't yet use ptest so we are wasting cycles building tests

Change-Id: I438b6599d1062b6d4f2411f6e37d7632fe9dc488
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-phosphor/recipes-phosphor/fans/phosphor-pid-control_git.bb b/meta-phosphor/recipes-phosphor/fans/phosphor-pid-control_git.bb
index 1c7eeb7..5f505d4 100644
--- a/meta-phosphor/recipes-phosphor/fans/phosphor-pid-control_git.bb
+++ b/meta-phosphor/recipes-phosphor/fans/phosphor-pid-control_git.bb
@@ -38,6 +38,7 @@
 
 EXTRA_OECONF = " \
   SYSTEMD_TARGET="multi-user.target" \
+  --disable-tests \
        "
 
 FILES_${PN} = "${bindir}/swampd ${bindir}/setsensor"