meta-phosphor: Update skeleton for flasher fixes

This resolves issues seen with using libflash via MTD.

  flasher: BMC partition addresses are relative to start of flash
  flasher: Remove flash tuned message
  flasher: Unify flash setup functions
  flasher: Use BMC_MTD to represent bmc
  flasher: unify cleanup commands
  flasher: Remove relocking of flash
  flasher: remove unused ffs_index
  flasher: Remove unsued blocklevel_get_info

Fixes: openbmc/openbmc#740
Fixes: openbmc/openbmc#741

Change-Id: Ie28f7b4d2216529389baf72bc657aa88225af519
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/classes/skeleton-rev.bbclass b/classes/skeleton-rev.bbclass
index ae5f049..abc56b3 100644
--- a/classes/skeleton-rev.bbclass
+++ b/classes/skeleton-rev.bbclass
@@ -1,2 +1,2 @@
-SRCREV ?= "44dd5a6ea7141610ffa922e9557c62552010b8a5"
+SRCREV ?= "29eaf4d4143056d271ee65f1c6126c533b87a49d"
 SKELETON_URI ?= "git://github.com/openbmc/skeleton"