Split nblog off from nbaio

nbaio is an acronym for "non-blocking audio I/O", and nblog means
"non-blocking logger" so nblog does not belong with nbaio.

There are a lot of improvements planned for nblog, and having the
restructuring done will make it clearer as more files are added.

Test: builds OK
Change-Id: Ib28bada2566c1d64bdbe9f5d7a5ce40e080178ef
diff --git a/media/libnblog/Android.bp b/media/libnblog/Android.bp
new file mode 100644
index 0000000..74aaf77
--- /dev/null
+++ b/media/libnblog/Android.bp
@@ -0,0 +1,28 @@
+cc_library_shared {
+
+    name: "libnblog",
+
+    srcs: [
+        "NBLog.cpp",
+        "PerformanceAnalysis.cpp",
+        "ReportPerformance.cpp",
+    ],
+
+    shared_libs: [
+        "libaudioutils",
+        "libbinder",
+        "libcutils",
+        "liblog",
+        "libutils",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    include_dirs: ["system/media/audio_utils/include"],
+
+    export_include_dirs: ["include"],
+
+}