lmsensors-config: fix a warning about not existant S

Set the S variable to $WORKDIR to remove the warning about S being not
existant (which is true for this package, since there are no original
sources for it).

Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/lm_sensors/lmsensors-config_1.0.bb

@@ -11,6 +11,7 @@ SRC_URI = "file://fancontrol \
            file://sensord.conf \
            file://sensors.conf \
 "
+S = "${WORKDIR}"
 
 RDEPENDS_${PN}-dev = ""