mrw-rev.bbclass: bump version

Change-Id: I5c4f4d9a1b9ec3c900380ec8bb64dc77319d2176
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/classes/mrw-rev.bbclass b/classes/mrw-rev.bbclass
index c06f607..1e56d8e 100644
--- a/classes/mrw-rev.bbclass
+++ b/classes/mrw-rev.bbclass
@@ -2,4 +2,4 @@
 MRW_API_SRCREV ?= "60c8e10cbb11768cd1ba394b35cb1d6627efec42"
 
 MRW_TOOLS_SRC_URI ?= "git://github.com/openbmc/phosphor-mrw-tools"
-MRW_TOOLS_SRCREV ?= "fff3da49d28320678a836e1b1d741283a6bc0dd2"
+MRW_TOOLS_SRCREV ?= "a93e2097d17e4b8d0eae48c477c12a6f03278e75"