skiboot: Move to v6.3 release

Upstream release notes:

 https://open-power.github.io/skiboot/doc/release-notes/skiboot-6.3.html

The stringop truncation warnings were fixed upstream.

(From meta-openpower rev: 645eed6d3f0b2f87604e48a9bdf15868e3f84ff1)

Signed-off-by: Joel Stanley <joel@jms.id.au>
Change-Id: I2b658f56757968c725d2feb600f820d465ee21b4
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openpower/recipes-bsp/skiboot/skiboot.inc b/meta-openpower/recipes-bsp/skiboot/skiboot.inc
index 51d089e..4f7ba65 100644
--- a/meta-openpower/recipes-bsp/skiboot/skiboot.inc
+++ b/meta-openpower/recipes-bsp/skiboot/skiboot.inc
@@ -2,14 +2,13 @@
 LICENSE = "Apache-2.0"
 
 SRC_URI += "git://github.com/open-power/skiboot.git"
-SRC_URI += "file://0001-libffs-fix-gcc8-stringop-truncation-warnings.patch"
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/skiboot:"
 
 LIC_FILES_CHKSUM = "file://${S}/LICENCE;md5=3b83ef96387f14655fc854ddc3c6bd57"
 
-SRCREV = "30f8a6006de45fadedd80c98059b63d3874a5269"
-PV = "6.0.13+git${SRCPV}"
+SRCREV = "54811997b6d02dacaf8dd0d61cadaf3786dbabb0"
+PV = "6.3.0+git${SRCPV}"
 
 S = "${WORKDIR}/git"