adbd: fix build breakage.

This broke because two CLs touching the Android.bp file both
independently passed presubmit, but failed when combined.

Clean up a misindentation while we're at it.

Bug: http://b/150032367
Test: mma in system/core/adb
Change-Id: I091ef9dec806c767ffb21a5fd73b2bb37ab29ff9

adb/Android.bp

@@ -375,7 +375,7 @@ cc_library_static {
     srcs: libadb_srcs + libadb_linux_srcs + libadb_posix_srcs + [
         "daemon/auth.cpp",
         "daemon/jdwp_service.cpp",
-	"daemon/adb_wifi.cpp",
+        "daemon/adb_wifi.cpp",
     ],
 
     local_include_dirs: [
@@ -516,6 +516,7 @@ cc_library {
         "libadbd_services",
         "libcutils_sockets",
         "libdiagnose_usb",
+        "libmdnssd",
     ],
 
     export_include_dirs: [