obmc-inventory: Utilize mrw-rev.bbclass

Change-Id: Idef03fe45ed01e9985584fab7ada3c845b947d9f
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-phosphor/inventory/obmc-inventory.bb b/common/recipes-phosphor/inventory/obmc-inventory.bb
index 8ad2c1e..ce3f6ed 100644
--- a/common/recipes-phosphor/inventory/obmc-inventory.bb
+++ b/common/recipes-phosphor/inventory/obmc-inventory.bb
@@ -9,11 +9,12 @@
 
 inherit allarch
 inherit obmc-phosphor-license
+inherit mrw-rev
 
 DEPENDS += "mrw-native mrw-api-native"
 
-SRC_URI += "git://github.com/openbmc/phosphor-mrw-tools"
-SRCREV = "7b48acdb83f17a046bd042b29734a2cce5e03372"
+SRC_URI += "${MRW_PATCH_SRC_URI}"
+SRCREV = "${MRW_PATCH_SRCREV}"
 
 FILES_${PN} += "${datadir}/inventory"