phosphor-fan-presence: srcrev bump d4c7fb7eb2..ab509256c7

Mike Capps (1):
      Monitor : add constant for service name

Change-Id: I0f3bee62156dba3713f03f0c9e35823522d3c295
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
diff --git a/meta-phosphor/recipes-phosphor/fans/phosphor-fan.inc b/meta-phosphor/recipes-phosphor/fans/phosphor-fan.inc
index 1e07755..58e65ae 100644
--- a/meta-phosphor/recipes-phosphor/fans/phosphor-fan.inc
+++ b/meta-phosphor/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 = "d4c7fb7eb28b2a20e1fe32ddb5fea03e367d7f25"
+SRCREV = "ab509256c72babffed19ae06ca0192a18eebe126"