firmware: Update to tag '1.20170811'

Signed-off-by: Paul Barker <pbarker@toganlabs.com>

recipes-bsp/common/firmware.inc

@@ -1,10 +1,10 @@
-RPIFW_DATE ?= "20170405"
+RPIFW_DATE ?= "20170811"
 RPIFW_SRC_URI ?= "https://github.com/raspberrypi/firmware/archive/1.${RPIFW_DATE}.tar.gz"
 RPIFW_S ?= "${WORKDIR}/firmware-1.${RPIFW_DATE}"
 
 SRC_URI = "${RPIFW_SRC_URI}"
-SRC_URI[md5sum] = "ea82d14a7cd8cfae9b78e00d4e56bc71"
-SRC_URI[sha256sum] = "2f4e5bddbac1372590db203002c35cbba3fb9d6172a93c314ee27bf05ae13bff"
+SRC_URI[md5sum] = "afd09f9a6df14e32b6d832fd9f51d087"
+SRC_URI[sha256sum] = "a25f6281d64732892a2e838cc2346f1a88505b5c77a57a6540755362ea64043a"
 
 PV = "${RPIFW_DATE}"