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/shells/dgsh/glibc-2.26.patch

@@ -0,0 +1,12 @@
+diff --git a/core-tools/src/dgsh-httpval.c b/core-tools/src/dgsh-httpval.c
+index 8b5dce3..7b43c3d 100644
+--- a/core-tools/src/dgsh-httpval.c
++++ b/core-tools/src/dgsh-httpval.c
+@@ -40,6 +40,7 @@
+ #include <sys/stat.h>
+ #include <unistd.h>
+ #include <stdlib.h>
++#include <stdint.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <ctype.h>