uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/inputmethods/fcitx/find-enchant-lib.patch

@@ -0,0 +1,42 @@
+diff --git a/cmake/FindEnchant.cmake b/cmake/FindEnchant.cmake
+index 7c182e6a..5537595e 100644
+--- a/cmake/FindEnchant.cmake
++++ b/cmake/FindEnchant.cmake
+@@ -16,7 +16,7 @@ if(ENCHANT_INCLUDE_DIR AND ENCHANT_LIBRARIES)
+ endif(ENCHANT_INCLUDE_DIR AND ENCHANT_LIBRARIES)
+ 
+ find_package(PkgConfig)
+-pkg_check_modules(PC_ENCHANT enchant)
++pkg_check_modules(PC_ENCHANT enchant-2)
+ 
+ find_path(ENCHANT_INCLUDE_DIR
+   NAMES enchant.h
+@@ -24,7 +24,7 @@ find_path(ENCHANT_INCLUDE_DIR
+   PATH_SUFFIXES "enchant")
+ 
+ find_library(ENCHANT_LIBRARIES
+-  NAMES enchant
++  NAMES enchant-2
+   HINTS ${PC_ENCHANT_LIBRARY_DIRS})
+ 
+ if(ENCHANT_INCLUDE_DIR AND ENCHANT_LIBRARIES)
+@@ -39,7 +39,7 @@ if(ENCHANT_INCLUDE_DIR AND ENCHANT_LIBRARIES)
+   #include <stdlib.h>
+   #include <stddef.h>
+   #include <string.h>
+-  #include <enchant/enchant.h>
++  #include <enchant-2/enchant.h>
+ 
+   EnchantBroker *enchant_broker_init();
+   char **enchant_dict_suggest(EnchantDict *dict, const char *str,
+@@ -78,6 +78,10 @@ if(ENCHANT_INCLUDE_DIR AND ENCHANT_LIBRARIES)
+   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS_BACKUP}")
+ endif()
+ 
++if(ENCHANT_API_COMPATIBLE)
++  set(ENCHANT_LIBRARY_FILENAME ${ENCHANT_LIBRARIES})
++endif(ENCHANT_API_COMPATIBLE)
++
+ include(FindPackageHandleStandardArgs)
+ find_package_handle_standard_args(Enchant DEFAULT_MSG ENCHANT_LIBRARIES
+   ENCHANT_INCLUDE_DIR ENCHANT_API_COMPATIBLE)