phosphor-fan.inc: bump version

Change-Id: Ib40ccc624a101607ac1b45bed5a59109f76034a1
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 d09b3b5..9558a5d 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 = "84201119da1a5df30b9155de1d9c302d0ec021dd"
+SRCREV = "8798854f0aab767edb8798fb014de5b4b9f7fae2"