libftdi: fix packagekit when useing cmake

Based on upstream commit by Thomas Jarosch based on Alexander's patch.
More info: https://github.com/openwrt/packages/pull/690

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

libs/libftdi/patches/101-fix-cmake-version-packagekit.patch

@@ -0,0 +1,29 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,9 +1,12 @@
+ # Project
+ project(libftdi)
++set(PACKAGE libftdi)
+ set(MAJOR_VERSION 0)
+ set(MINOR_VERSION 20)
++set(VERSION ${VERSION_STRING})
+ set(VERSION_STRING ${MAJOR_VERSION}.${MINOR_VERSION})
+-SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
++set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
++set(top_srcdir ${CMAKE_SOURCE_DIR})
+ 
+ # CMake
+ if("${CMAKE_BUILD_TYPE}" STREQUAL "")
+@@ -98,12 +101,6 @@ option(DOCUMENTATION "Generate API docum
+ 
+ find_package(Doxygen)
+ if(DOCUMENTATION AND DOXYGEN_FOUND)
+-
+-   # Set variables
+-   set(PACKAGE libftdi)
+-   set(VERSION ${VERSION_STRING})
+-   set(top_srcdir ${CMAKE_SOURCE_DIR})
+-
+    # Find doxy config
+    message(STATUS "Doxygen found.")
+    set(DOXY_DIR "${CMAKE_SOURCE_DIR}/doc")