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/security/trousers/allow-non-tss-config-file-owner.patch

@@ -0,0 +1,19 @@
+diff -ur trousers-0.3.11.2.orig/src/tcsd/tcsd_conf.c trousers-0.3.11.2/src/tcsd/tcsd_conf.c
+--- trousers-0.3.11.2.orig/src/tcsd/tcsd_conf.c	2013-07-12 18:27:37.000000000 +0200
++++ trousers-0.3.11.2/src/tcsd/tcsd_conf.c	2013-08-21 14:29:42.917231648 +0200
+@@ -763,6 +763,7 @@
+ 		return TCSERR(TSS_E_INTERNAL_ERROR);
+ 	}
+ 
++#ifndef ALLOW_NON_TSS_CONFIG_FILE
+ 	/* make sure user/group TSS owns the conf file */
+ 	if (stat_buf.st_uid != 0 || grp->gr_gid != stat_buf.st_gid) {
+ 		LogError("TCSD config file (%s) must be user/group %s/%s", tcsd_config_file,
+@@ -775,6 +776,7 @@
+ 		LogError("TCSD config file (%s) must be mode 0640", tcsd_config_file);
+ 		return TCSERR(TSS_E_INTERNAL_ERROR);
+ 	}
++#endif
+ #endif /* SOLARIS */
+ 
+ 	if ((f = fopen(tcsd_config_file, "r")) == NULL) {

pkgs/tools/security/trousers/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchurl, openssl, pkg-config, autoreconfHook }:
+
+stdenv.mkDerivation rec {
+  pname = "trousers";
+  version = "0.3.15";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/trousers/trousers/${version}/${pname}-${version}.tar.gz";
+    sha256 = "0zy7r9cnr2gvwr2fb1q4fc5xnvx405ymcbrdv7qsqwl3a4zfjnqy";
+  };
+
+  nativeBuildInputs = [ pkg-config autoreconfHook ];
+  buildInputs = [ openssl ];
+
+  patches = [ ./allow-non-tss-config-file-owner.patch ];
+
+  configureFlags = [ "--disable-usercheck" ];
+
+  NIX_CFLAGS_COMPILE = [ "-DALLOW_NON_TSS_CONFIG_FILE" ];
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "Trusted computing software stack";
+    homepage    = "http://trousers.sourceforge.net/";
+    license     = licenses.bsd3;
+    maintainers = [ maintainers.ak ];
+    platforms   = platforms.linux;
+  };
+}