Add DNG format in MTP

Bug: 25871812
Change-Id: I141d97cb8866edcaa7cab7fe04721e4386832d2b
diff --git a/media/mtp/mtp.h b/media/mtp/mtp.h
index 7b80d2e..adfb102 100644
--- a/media/mtp/mtp.h
+++ b/media/mtp/mtp.h
@@ -93,6 +93,7 @@
 #define MTP_FORMAT_TIFF_IT                              0x380E   // Tag Image File Format for Information Technology (graphic arts)
 #define MTP_FORMAT_JP2                                  0x380F   // JPEG2000 Baseline File Format
 #define MTP_FORMAT_JPX                                  0x3810   // JPEG2000 Extended File Format
+#define MTP_FORMAT_DNG                                  0x3811   // Digital Negative
 #define MTP_FORMAT_UNDEFINED_FIRMWARE                   0xB802
 #define MTP_FORMAT_WINDOWS_IMAGE_FORMAT                 0xB881
 #define MTP_FORMAT_UNDEFINED_AUDIO                      0xB900