logrotate: add logrotate.d to conffiles definition

Currently the contents of logrotate.d is not kept across sysupgrades.
Add this directory to the conffiles definition to ensure its content is
maintained.

Bump the release as well.

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>

utils/logrotate/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=logrotate
 PKG_VERSION:=3.17.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/logrotate/logrotate/releases/download/$(PKG_VERSION)
@@ -49,6 +49,7 @@ endef
 
 define Package/logrotate/conffiles
 /etc/logrotate.conf
+/etc/logrotate.d
 endef
 
 CONFIGURE_ARGS += \