phosphor-fan.inc: bump version

Change-Id: Ide89345884b6aba31cbd608ecccd65d7aa6b5ea0
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-phosphor/fans/phosphor-fan.inc b/common/recipes-phosphor/fans/phosphor-fan.inc
index 3730aab..c2afcbe 100644
--- a/common/recipes-phosphor/fans/phosphor-fan.inc
+++ b/common/recipes-phosphor/fans/phosphor-fan.inc
@@ -2,4 +2,4 @@
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://${S}/LICENSE;md5=e3fc50a88d0a364313df4b21ef20c29e"
 SRC_URI += "git://github.com/openbmc/phosphor-fan-presence"
-SRCREV = "1bfdc423ca27944e9040990b18f2e32d85ac0559"
+SRCREV = "4e72854210866ae47b6446dc78df42fff540c68e"