phosphor-fan-presence: srcrev bump ba3ee9aedd..23f8757eda

Matt Spinler (2):
      monitor:  Allow missing presence property on start
      Add class params to the DBus* exception messages

Change-Id: I2c1d2d1f78852257f5ae2588faf2471843a8471a
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
diff --git a/recipes-phosphor/fans/phosphor-fan.inc b/recipes-phosphor/fans/phosphor-fan.inc
index 96a6706..b54465e 100644
--- a/recipes-phosphor/fans/phosphor-fan.inc
+++ b/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 = "ba3ee9aedd2ba69f12d1fc50e9ef14b8480447f8"
+SRCREV = "23f8757eda6a18f6da10fc0f9e07080467462ea9"