adb: bump the server version to 36.

The recent `adb root` changes are incompatible with older versions of
the server. Bump the version number to force the server to restart.

Bug: http://b/28194507
Change-Id: I970806e3b68c1f8e3273a4b1f0ecc4aca5086be9

adb/adb.h

@@ -50,7 +50,7 @@ constexpr size_t MAX_PAYLOAD = MAX_PAYLOAD_V2;
 std::string adb_version();
 
 // Increment this when we want to force users to start a new adb server.
-#define ADB_SERVER_VERSION 35
+#define ADB_SERVER_VERSION 36
 
 class atransport;
 struct usb_handle;