ANDROID: Update devicetree_library dt-bindings dependencies

Add include/linux/kconfig.h to the hdrs of the dt-bindings target. This
is required for device trees to use `IS_ENABLED` macro.

Bug: 448483795
Change-Id: Icb120826738b0c315a272981f313924b8060f8d6
Signed-off-by: Yuan-Jen (淵仁) Cheng <cyuanjen@google.com>

BUILD.bazel

@@ -1658,8 +1658,13 @@ devicetree_library(
     name = "dt-bindings",
     hdrs = glob([
         "scripts/dtc/include-prefixes/dt-bindings/**/*.h",
-    ]),
-    includes = ["scripts/dtc/include-prefixes"],
+    ]) + [
+        "include/linux/kconfig.h",
+    ],
+    includes = [
+        "include",
+        "scripts/dtc/include-prefixes",
+    ],
     visibility = ["//visibility:private"],
 )