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/os-specific/linux/sysklogd/union-wait.patch

@@ -0,0 +1,11 @@
+--- sysklogd-1.5-old/syslogd.c	2016-08-30 22:50:59.812926945 +0100
++++ sysklogd-1.5/syslogd.c	2016-08-30 22:51:12.008842890 +0100
+@@ -2094,7 +2094,7 @@
+ 	(void) signal(SIGCHLD, reapchild);	/* reset signal handler -ASP */
+ 	wait ((int *)0);
+ #else
+-	union wait status;
++	int status;
+ 
+ 	while (wait3(&status, WNOHANG, (struct rusage *) NULL) > 0)
+ 		;