Implement update_txb_context for lv_map
Implement update_txb_context for lv_map

Change-Id: I6bedc3a1a40e551ce4b3989382b7706a589c08f2

GrokImageCompression/aom,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,GrokImageCompression/aom,smarter/aom,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,smarter/aom