libftdi: add libftdi-config, simplify files copy

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

libs/libftdi/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2011-2014 OpenWrt.org
+# Copyright (C) 2011-2015 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libftdi
 PKG_VERSION:=0.20
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.intra2net.com/en/developer/libftdi/download/
@@ -43,13 +43,14 @@ define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include/
 	$(CP) $(PKG_INSTALL_DIR)/usr/include/ftdi.h $(1)/usr/include/
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libftdi.{a,so} $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libftdi.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libftdi.{a,so*} $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig/
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libftdi.pc $(1)/usr/lib/pkgconfig/libftdi.pc
 endef
 
 define Package/libftdi/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/libftdi-config $(1)/usr/bin/
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libftdi.so.* $(1)/usr/lib/
 endef