phosphor-led-manager.inc: bump version

Change-Id: I4b181982062eeaa87eb8581765cc495097df0c85
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-phosphor/leds/phosphor-led-manager.inc b/common/recipes-phosphor/leds/phosphor-led-manager.inc
index 392e18a..58c8f91 100644
--- a/common/recipes-phosphor/leds/phosphor-led-manager.inc
+++ b/common/recipes-phosphor/leds/phosphor-led-manager.inc
@@ -2,4 +2,4 @@
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=e3fc50a88d0a364313df4b21ef20c29e"
 SRC_URI += "git://github.com/openbmc/phosphor-led-manager"
-SRCREV = "cd569d24cd46e0d6a68654b979b1ddd00bc86cd8"
+SRCREV = "3c6f29a0d0c89186e5f8fe1dfb12f76a6e448b28"