ARM: dts: qcom: Add Bazel files for DT compilation

Kleaf provides a kernel_dtstree rule that must be used
to define a directory containing dts/dtsi files.

The rule uses the Bazel hermetic device tree compiler to
generate the DTB and DTBO files.

A platform map is added to link target names to device tree
files.

Change-Id: I9964cb70ec2d661608227890395ab316fb6a6259

BUILD.bazel

@@ -0,0 +1,21 @@
+load("//build/kernel/kleaf:kernel.bzl", "kernel_dtstree")
+
+kernel_dtstree(
+    name = "msm_dt",
+    srcs = glob(
+        [
+            "Makefile",
+            "qcom/Makefile",
+            "qcom/**/*.dtsi",
+            "qcom/**/*.dts",
+            "bindings/**/*",
+        ],
+        exclude = [
+            "**/.*",
+            "**/.*/**",
+            "**/*.bazel",
+            "**/*.bzl",
+        ],
+    ),
+    visibility = ["//visibility:public"],
+)

qcom/platform_map.bzl

@@ -0,0 +1,39 @@
+platform_map = {
+    "kalama": {
+        "dtb_list": [
+            # keep sorted
+            "kalama.dtb",
+            "kalamap.dtb",
+            "kalamap-v2.dtb",
+        ],
+        "dtbo_list": [
+            # keep sorted
+            "kalama-atp-overlay.dtbo",
+            "kalama-cdp-nfc-overlay.dtbo",
+            "kalama-cdp-overlay.dtbo",
+            "kalama-cdp-wsa883x-overlay.dtbo",
+            "kalama-mtp-nfc-overlay.dtbo",
+            "kalama-mtp-overlay.dtbo",
+            "kalama-qrd-overlay.dtbo",
+            "kalama-rcm-overlay.dtbo",
+            "kalama-rumi-overlay.dtbo",
+        ],
+    },
+    "pineapple": {
+        "dtb_list": [
+            # keep sorted
+            "pineapple.dtb",
+            "pineapple-v2.dtb",
+            "pineapplep.dtb",
+            "pineapplep-v2.dtb",
+        ],
+        "dtbo_list": [
+            # keep sorted
+            "pineapple-atp-overlay.dtbo",
+            "pineapple-cdp-overlay.dtbo",
+            "pineapple-mtp-overlay.dtbo",
+            "pineapple-qrd-overlay.dtbo",
+            "pineapple-rumi-overlay.dtbo",
+        ],
+    },
+}