Add missing file

I'm really not very good at this whole git thing, am I?

microsoft/surface/kernel/linux-5.16.11.nix

@@ -0,0 +1,85 @@
+{ config, lib, pkgs, ... }:
+let
+  repos = pkgs.callPackage ../repos.nix {};
+  linuxPkg = { fetchurl, buildLinux, ... }@args:
+    buildLinux (args // rec {
+      version = "5.16.11";
+      modDirVersion = version;
+      extraMeta.branch = "5.16";
+
+      src = repos.linux-surface-kernel;
+
+      kernelPatches = [{
+        name = "microsoft-surface-patches-linux-5.16.2";
+        patch = null;
+        structuredExtraConfig = with lib.kernel; {
+          #
+          # Surface Aggregator Module
+          #
+          SURFACE_AGGREGATOR = module;
+          SURFACE_AGGREGATOR_ERROR_INJECTION = no;
+          SURFACE_AGGREGATOR_BUS = yes;
+          SURFACE_AGGREGATOR_CDEV = module;
+          SURFACE_AGGREGATOR_REGISTRY = module;
+
+          SURFACE_ACPI_NOTIFY = module;
+          SURFACE_DTX = module;
+          SURFACE_PLATFORM_PROFILE = module;
+
+          SURFACE_HID = module;
+          SURFACE_KBD = module;
+
+          BATTERY_SURFACE = module;
+          CHARGER_SURFACE = module;
+
+          #
+          # Surface laptop 1 keyboard
+          #
+          SERIAL_DEV_BUS = yes;
+          SERIAL_DEV_CTRL_TTYPORT = yes;
+
+          #
+          # Surface Hotplug
+          #
+          SURFACE_HOTPLUG = module;
+
+          #
+          # IPTS touchscreen
+          #
+          # This only enables the user interface for IPTS data.
+          # For the touchscreen to work, you need to install iptsd.
+          #
+          MISC_IPTS = module;
+
+          #
+          # Cameras: IPU3
+          #
+          VIDEO_IPU3_IMGU = module;
+          VIDEO_IPU3_CIO2 = module;
+          CIO2_BRIDGE = yes;
+          INTEL_SKL_INT3472 = module;
+
+          #
+          # Cameras: Sensor drivers
+          #
+          VIDEO_OV5693 = module;
+          VIDEO_OV8865 = module;
+
+          #
+          # ALS Sensor for Surface Book 3, Surface Laptop 3, Surface Pro 7
+          #
+          APDS9960 = module;
+
+          #
+          # Other Drivers
+          #
+          INPUT_SOC_BUTTON_ARRAY = module;
+          SURFACE_3_BUTTON = module;
+          SURFACE_3_POWER_OPREGION = module;
+          SURFACE_PRO3_BUTTON = module;
+          SURFACE_GPE = module;
+          SURFACE_BOOK1_DGPU_SWITCH = module;
+        };
+      }];
+    } // (args.argsOverride or {}));
+in with pkgs; recurseIntoAttrs (linuxPackagesFor (callPackage linuxPkg {}))