libarchive: add conflict to bsdtar/bsdtar-noopenssl

Fixes:
Packages 'bsdtar' and 'bsdtar-noopenssl' do not conflict while providing same file: /usr/bin/bsdtar

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

libs/libarchive/Makefile

@@ -53,6 +53,7 @@ endef
 define Package/bsdtar
   $(call Package/bsdtar/Default)
   DEPENDS:= +libarchive
+  CONFLICTS:=bsdtar-noopenssl
 endef
 
 define Package/bsdtar-noopenssl