u-boot: upgrade 2020.04 -> 2020.07

See https://lists.denx.de/pipermail/u-boot/2020-July/418797.html

(From OE-Core rev: db6fedd77a1a468ce65f7276bb79b5f0ddf4a0b5)

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-bsp/u-boot/u-boot-common.inc

@@ -12,7 +12,7 @@ PE = "1"
 
 # We use the revision in order to avoid having to fetch it from the
 # repo during parse
-SRCREV = "1079ec0a77c3fda510f07860b2549c47f3a46c21"
+SRCREV = "2f5fbb5b39f7b67044dda5c35e4a4b31685a3109"
 
 SRC_URI = "git://git.denx.de/u-boot.git \
           "