phosphor-inventory-manager.inc: bump version

Change-Id: Ic78c510850222b411a08caaec0c4b54a7bcab625
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-phosphor/inventory/phosphor-inventory-manager.inc b/common/recipes-phosphor/inventory/phosphor-inventory-manager.inc
index dcbe918..5d34355 100644
--- a/common/recipes-phosphor/inventory/phosphor-inventory-manager.inc
+++ b/common/recipes-phosphor/inventory/phosphor-inventory-manager.inc
@@ -2,4 +2,4 @@
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=e3fc50a88d0a364313df4b21ef20c29e"
 SRC_URI = "git://github.com/openbmc/phosphor-inventory-manager"
-SRCREV = "2a9f934aae45b7d4fab93ccbd761d39600bdf385"
+SRCREV = "12f8a3c8d0725cde677fb183454f2075df54f31e"