ipacm: convert Android.mk files to Android.bp

As part of soong modernisation, requirement is to use
Android.bp framework instead of Android.mk. Make changes
to convert Android.mk to Android.bp files.

Change-Id: I8f2d40159360afd0631c0c50cb823455a45396ef
diff --git a/ipanat/Android.bp b/ipanat/Android.bp
new file mode 100644
index 0000000..310304d
--- /dev/null
+++ b/ipanat/Android.bp
@@ -0,0 +1,28 @@
+
+
+cc_library_shared {
+    name: "libipanat",
+
+    header_libs: ["qti_kernel_headers"],
+
+    srcs: [
+        "src/ipa_nat_drv.c",
+        "src/ipa_nat_drvi.c",
+    ],
+
+   shared_libs:
+        ["libcutils",
+        "libdl",
+        "libbase",
+        "libutils",
+    ],
+    export_include_dirs: ["inc"],
+    vendor: true,
+    cflags: [
+        "-DDEBUG",
+        "-Wall",
+        "-Werror",
+    ] + ["-DFEATURE_IPA_ANDROID"],
+
+    clang: true,
+}