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/audio/alsaequal/caps_9.x.patch

@@ -0,0 +1,21 @@
+--- ./ctl_equal.c
++++ ./ctl_equal.c
+@@ -167,7 +167,7 @@
+ 	snd_ctl_equal_t *equal;
+ 	const char *controls = ".alsaequal.bin";
+ 	const char *library = "/usr/lib/ladspa/caps.so";
+-	const char *module = "Eq";
++	const char *module = "Eq10";
+ 	long channels = 2;
+ 	const char *sufix = " Playback Volume";
+ 	int err, i, index;
+--- ./pcm_equal.c
++++ ./pcm_equal.c
+@@ -151,7 +151,7 @@
+ 	snd_config_t *sconf = NULL;
+ 	const char *controls = ".alsaequal.bin";
+ 	const char *library = "/usr/lib/ladspa/caps.so";
+-	const char *module = "Eq";
++	const char *module = "Eq10";
+ 	long channels = 2;
+ 	int err;