syncthing: increase inotify limit

default inotify limits at 8k are
low for serious usage
and the GUI shows errors like
"Failed to start filesystem watcher
for folder XXXX"
increase them with this config file
as instructed by syncthing's FAQ.
https://docs.syncthing.net/users/
faq.html#inotify-limits

Signed-off-by: Alberto Bursi <bobafetthotmail@gmail.com>
[bumped PKG_RELEASE]
Signed-off-by: Paul Spooren <mail@aparcar.org>

utils/syncthing/Makefile

@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=syncthing
 PKG_VERSION:=1.6.1
-PKG_RELEASE:=0
+PKG_RELEASE:=1
 
 PKG_SOURCE:=syncthing-source-v$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/syncthing/syncthing/releases/download/v$(PKG_VERSION)

utils/syncthing/files/etc/sysctl.d/90-syncthing-inotify.conf

@@ -0,0 +1 @@
+fs.inotify.max_user_watches=204800