phosphor-fan.inc: bump version

Change-Id: Ieff2a1cf20b2c7329db046caa23df5dadc7e6221
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meta-phosphor/common/recipes-phosphor/fans/phosphor-fan.inc b/meta-phosphor/common/recipes-phosphor/fans/phosphor-fan.inc
index 193aab7..d09b3b5 100644
--- a/meta-phosphor/common/recipes-phosphor/fans/phosphor-fan.inc
+++ b/meta-phosphor/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 = "e824f985e7e32923d9f76e3ad5baf4909880739f"
+SRCREV = "84201119da1a5df30b9155de1d9c302d0ec021dd"