phosphor-fan-presence: srcrev bump 77073c58a7..87f9adc467

Matt Spinler (1):
      monitor:  Add tick count to error log capture

Change-Id: I517e472a4899575614d18d17a25a04db9eabfb0b
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 9135da9..ad2d4a6 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;branch=master;protocol=https"
-SRCREV = "77073c58a7b3ddf6c6e9c5c1d2a6b97c3ec5eaf8"
+SRCREV = "87f9adc4670bdede4055c7beac4c7cbb8baf7614"