keepalived: fix runtime error if kernel option CONFIG_PROC_EVENTS is not enabled

This fixes a runtime startup error for system, which does not have enabled the
kernel config option CONFIG_PROC_EVENTS.

This workaround was published on github under the following URL.
https://github.com/acassen/keepalived/issues/1119

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/keepalived/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=keepalived
 PKG_VERSION:=2.0.19
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://www.keepalived.org/software
@@ -86,7 +86,8 @@ endef
 
 CONFIGURE_ARGS+= \
 	--with-init=SYSV \
-	--disable-nftables
+	--disable-nftables \
+	--disable-track-process
 
 ifeq ($(CONFIG_KEEPALIVED_VRRP),)
 CONFIGURE_ARGS += \