usteer: update to latest git head

8e7b1ff ubus: skip current node for transition candidate list
e51ea7a node: move roam-events to dedicated struct
edbe7d4 node: skip neighbors exceeding assoc-limit

Signed-off-by: David Bauer <mail@david-bauer.net>

net/usteer/Makefile

@@ -3,13 +3,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=usteer
-PKG_SOURCE_DATE:=2021-11-25
-PKG_SOURCE_VERSION:=7bf79a237c4eaf68fa9211fbf1d1c083fa749c91
+PKG_SOURCE_DATE:=2021-10-09
+PKG_SOURCE_VERSION:=8e7b1ffc26117c4b0338a69f5a6fb396c18448bf
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=https://git.openwrt.org/project/usteer.git
-PKG_MIRROR_HASH:=f965f085088c49531a39b9bb51e25cc275851511a4c8204442c0a12ef68162bf
+PKG_MIRROR_HASH:=cb40e6d61e6bcd33ff6693d9b599a3d89d825e79e7f80aab110ee026ec6e7ed9
 
 PKG_MAINTAINER:=David Bauer <mail@david-bauer.net>
 PKG_LICENSE:=GPL-2.0-only