phosphor-fan.inc: bump version

Change-Id: I30898201c6fab8aa658e4483b7926cb54c92e475
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/common/recipes-phosphor/fans/phosphor-fan.inc b/common/recipes-phosphor/fans/phosphor-fan.inc
index e279202..ee02ff4 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 = "7f7df319f500b5dac983e2159e7a6f12565d7358"
+SRCREV = "9a5b6994c745480a78ef658148cfd96dd3e12bdb"