mrw-rev.bbclass: bump version

Change-Id: I9f5e377862460003038a41062ac30fc149da35ee
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/classes/mrw-rev.bbclass b/classes/mrw-rev.bbclass
index 649fb45..f9a2527 100644
--- a/classes/mrw-rev.bbclass
+++ b/classes/mrw-rev.bbclass
@@ -2,4 +2,4 @@
 MRW_API_SRCREV ?= "31155941629988f0adcf765e7e7dd3af34fb1214"
 
 MRW_TOOLS_SRC_URI ?= "git://github.com/openbmc/phosphor-mrw-tools"
-MRW_TOOLS_SRCREV ?= "c8dca9e8b87adfec6401d6f26b28a7b991a08b2b"
+MRW_TOOLS_SRCREV ?= "9283add2b13b43e50248c612a5b2dfbed9a39903"