libev: update to 4.33

Switch to AUTORELEASE for simplicity.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libev/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libev
-PKG_VERSION:=4.31
-PKG_RELEASE:=1
+PKG_VERSION:=4.33
+PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://dist.schmorp.de/libev/Attic/
-PKG_HASH:=ed855d2b52118e32c0c1a6a32bd18c97f9e6711ca511f5ee12de3b9eccc66e5a
+PKG_HASH:=507eb7b8d1015fbec5b935f34ebed15bf346bed04a11ab82b8eee848c4205aea
 PKG_LICENSE:=BSD-2-Clause
 PKG_MAINTAINER:=Karl Palsson <karlp@tweak.net.au>