pflash: bump to v5.7-rc2

Benjamin Herrenschmidt (1):
      libffs: Fix ffs_lookup_part() return value

Cyril Bur (4):
      libflash/mbox-flash: Minor fixups before V2
      libflash/mbox-flash: Update to V2 of the protocol
      libflash/libffs: Correctly update the actual size of the partition
      libflash/libffs: Zero checksum words

Oliver O'Halloran (1):
      libflash: Initialise entries list earlier

Suraj Jitindar Singh (1):
      libflash/mbox-flash: Implement MARK_WRITE_ERASED mbox call

Change-Id: If49644ef2680aeed901002b201391ae7abbbe651
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/common/recipes-bsp/skiboot/skiboot.inc b/common/recipes-bsp/skiboot/skiboot.inc
index 5e943c1..60fc4a1 100644
--- a/common/recipes-bsp/skiboot/skiboot.inc
+++ b/common/recipes-bsp/skiboot/skiboot.inc
@@ -3,14 +3,13 @@
 
 SRC_URI += "git://github.com/open-power/skiboot.git;nobranch=1"
 SRC_URI += "file://0001-external-Use-more-standard-PREFIX-vs-prefix.patch"
-SRC_URI += "file://0002-libflash-libffs-Correctly-update-the-actual-size-of-.patch"
 
 FILESEXTRAPATHS_append := "${THISDIR}/skiboot:"
 
 LIC_FILES_CHKSUM = "file://${S}/LICENCE;md5=3b83ef96387f14655fc854ddc3c6bd57"
 
-SRCREV = "skiboot-5.6.0"
-PV = "5.6.0"
+SRCREV = "v5.7-rc2"
+PV = "v5.7-rc2"
 
 S = "${WORKDIR}/git"