Fix mac build breakage due to missing usb_osx.cpp in

Android.cpp file for libfastboot2

https://android-review.googlesource.com/c/platform/system/core/+/722153

Test: Build on osx
Change-Id: I6151e37581ac332e4d5cfb5e40feb3ea0e3093df

fastboot/Android.bp

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// This is required because no Android.bp can include a library defined in an
+// Android.mk. Eventually should kill libfastboot (defined in Android.mk)
 cc_library_host_static {
     name: "libfastboot2",
 
@@ -56,6 +58,23 @@ cc_library_host_static {
       linux: {
         srcs: ["usb_linux.cpp"],
       },
+
+      darwin: {
+        srcs: ["usb_osx.cpp"],
+
+        host_ldlibs: [
+            "-framework CoreFoundation",
+            "-framework IOKit",
+        ],
+      },
+
+      windows: {
+        srcs: ["usb_windows.cpp"],
+
+        host_ldlibs: [
+            "-lws2_32",
+        ],
+      },
     },
 
     cflags: [

fastboot/fuzzy_fastboot/Android.bp

@@ -28,4 +28,14 @@ cc_test_host {
     "libsparse",
   ],
 
+  // Static libs (libfastboot2) shared library dependencies are not transitively included
+  // This is needed to avoid link time errors when building for mac
+  target: {
+    darwin: {
+      host_ldlibs: [
+          "-framework CoreFoundation",
+          "-framework IOKit",
+      ],
+    },
+  }
 }