libftdi: fix cmake build issues

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

libs/libftdi/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libftdi
 PKG_VERSION:=0.20
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.intra2net.com/en/developer/libftdi/download/

libs/libftdi/patches/102-fix-cmake-include-examples.patch

@@ -0,0 +1,11 @@
+--- a/examples/CMakeLists.txt
++++ b/examples/CMakeLists.txt
+@@ -2,7 +2,7 @@ option(EXAMPLES "Build example programs"
+ 
+ if (EXAMPLES)
+     # Includes
+-    include( ${CMAKE_CURRENT_SOURCE_DIR}
++    include_directories( ${CMAKE_CURRENT_SOURCE_DIR}
+             ${CMAKE_CURRENT_BINARY_DIR}
+             )
+