phosphor-hwmon.bb: bump version

Change-Id: Ia9e9853fb91eb0545452fb8b3ad7fa30a343936b
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meta-phosphor/common/recipes-phosphor/sensors/phosphor-hwmon.bb b/meta-phosphor/common/recipes-phosphor/sensors/phosphor-hwmon.bb
index 3c07e43..21ab523 100644
--- a/meta-phosphor/common/recipes-phosphor/sensors/phosphor-hwmon.bb
+++ b/meta-phosphor/common/recipes-phosphor/sensors/phosphor-hwmon.bb
@@ -28,7 +28,7 @@
 SRC_URI += "git://github.com/openbmc/phosphor-hwmon"
 SRC_URI += "file://70-hwmon.rules"
 
-SRCREV = "03e8735ab2980eff41eb4402dcf3b73f12e9fa65"
+SRCREV = "973886db122187b4d30ad0d359c1e9db0e23a706"
 
 S = "${WORKDIR}/git"