kas: pass TERMINFO environment variable

pkgs/by-name/ka/kas/package.nix

···
     hash = "sha256-P2I3lLa8kuCORdlrwcswrWFwOA8lW2WL4Apv/2T7+f8=";
   };
 
+  patches = [ ./pass-terminfo-env.patch ];
+
   propagatedBuildInputs = with python3.pkgs; [
     setuptools
     kconfiglib

pkgs/by-name/ka/kas/pass-terminfo-env.patch

···
+diff --git a/kas/libkas.py b/kas/libkas.py
+index d9db5c6..42ae1ca 100644
+--- a/kas/libkas.py
++++ b/kas/libkas.py
+@@ -322,7 +322,7 @@ def get_build_environ(build_system):
+         env.update({'BB_ENV_EXTRAWHITE': extra_white})
+ 
+     env_vars.extend(['SSH_AUTH_SOCK',
+-                     'SHELL', 'TERM',
++                     'SHELL', 'TERM', 'TERMINFO',
+                      'GIT_PROXY_COMMAND', 'NO_PROXY'])
+ 
+     for env_var in env_vars: