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/development/tools/build-managers/gnumake/0001-No-impure-bin-sh.patch

@@ -0,0 +1,35 @@
+From e00a5257a6ca5fedbf68b09eee7df3502971a057 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
+Date: Sat, 24 Apr 2021 10:11:40 +0200
+Subject: [PATCH 1/2] No impure bin sh
+
+default_shell is used to populuate default shell used to execute jobs.
+Unless SHELL is set to a different value this would be /bin/sh.
+Our stdenv provides sh in form of bash anyway. Having this value not
+hard-coded has some advantages:
+
+- It would ensure that on all systems it uses sh from its PATH rather
+  than /bin/sh, which helps as different systems might have different
+  shells there (bash vs. dash)
+- In the past I had issues with LD_PRELOAD with BEAR, where /bin/sh
+  used a different glibc than BEAR which came from my development shell.
+---
+ src/job.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/job.c b/src/job.c
+index ae1f18b..6b4ddb3 100644
+--- a/src/job.c
++++ b/src/job.c
+@@ -77,7 +77,7 @@ char * vms_strsignal (int status);
+ 
+ #else
+ 
+-const char *default_shell = "/bin/sh";
++const char *default_shell = "sh";
+ int batch_mode_shell = 0;
+ 
+ #endif
+-- 
+2.31.1
+