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/misc/diffoscope/fix-tests.patch

@@ -0,0 +1,33 @@
+diff --git a/tests/comparators/test_rlib.py b/tests/comparators/test_rlib.py
+index 8d201ab..05960aa 100644
+--- a/tests/comparators/test_rlib.py
++++ b/tests/comparators/test_rlib.py
+@@ -81,9 +81,6 @@ def rlib_dis_expected_diff():
+     if actual_ver >= "7.0":
+         diff_file = "rlib_llvm_dis_expected_diff_7"
+ 
+-    if actual_ver >= "10.0":
+-        diff_file = "rlib_llvm_dis_expected_diff_10"
+-
+     return get_data(diff_file)
+ 
+ 
+diff --git a/tests/data/pgp_signed_expected_diff b/tests/data/pgp_signed_expected_diff
+index 7e90e428..9628efa0 100644
+--- a/tests/data/pgp_signed_expected_diff
++++ b/tests/data/pgp_signed_expected_diff
+@@ -5,11 +5,11 @@
+  	Key ID - 0x1E953E27D4311E58
+  	Next packet - other than one pass signature
+  Old: Literal Data Packet(tag 11)(10255 bytes)
+- 	Format - binary
++ 	Packet data format - binary
+ -	Filename - test1.tar
+--	File modified time - Tue Aug 25 11:47:35 UTC 2020
++-	Creation time - Tue Aug 25 11:47:35 UTC 2020
+ +	Filename - test2.tar
+-+	File modified time - Tue Aug 25 11:47:38 UTC 2020
+++	Creation time - Tue Aug 25 11:47:38 UTC 2020
+  	Literal - ...
+  Old: Signature Packet(tag 2)(563 bytes)
+  	Ver 4 - new