Add samsung specific changes

uapi_library.bzl

@@ -0,0 +1,18 @@
+load(":uapi_unpacker.bzl", "uapi_unpacker")
+
+def define_uapi_library(target):
+    """Create a header-only cc_library of the kernel's UAPI headers
+
+    Args:
+      target: name of main Bazel target (e.g. `kalama_gki`)
+    """
+    uapi_unpacker(
+        name = "{}_uapi_unpacker".format(target),
+        kernel_uapi_headers = ":{}_uapi_headers".format(target),
+    )
+
+    native.cc_library(
+        name = "{}_uapi_header_library".format(target),
+        hdrs = [":{}_uapi_unpacker".format(target)],
+        includes = ["{}_uapi_unpacker_uapi_headers".format(target)],
+    )