ocserv: avoid implicit dependencies

Explicitely disable liblz4 and external libtalloc support in order to avoid
implicit dependencies leading to the following error on build environments
that happen to provide liblz4 and libtalloc:

    Package ocserv is missing dependencies for the following libraries:
    liblz4.so.1
    libtalloc.so.2

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

net/ocserv/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ocserv
 PKG_VERSION:=0.11.5
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_USE_MIPS16:=0
 
 PKG_BUILD_DIR :=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
@@ -62,6 +62,8 @@ CONFIGURE_ARGS+= \
 	--without-libnl \
 	--without-gssapi \
 	--with-libcrypt-prefix="$(STAGING_DIR)/" \
+	--without-lz4 \
+	--with-local-talloc \
 
 ifneq ($(CONFIG_OCSERV_PAM),y)
 CONFIGURE_ARGS += --without-pam