hammerhead: add qcom vp8 encoder to media_codecs.xml
hammerhead: add qcom vp8 encoder to media_codecs.xml

Bug: 9591089
Change-Id: Ida2f08a9896d6e9ae9f7c6ee6a10eac357dd2eed

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead