Update PATENTS to reflect s/VP8/WebM/g
Update PATENTS to reflect s/VP8/WebM/g

Sync with http://www.webmproject.org/license/additional/

modified:   PATENTS

Change-Id: Iee55b79357f9e57e45d39c707677508100181ad5

reimaginemedia/webm.udpsample,Acidburn0zzz/webm.udpsample,gshORTON/webm.udpsample,webmproject/udpsample,kleopatra999/webm.udpsample,altogother/webm.udpsample,matanbs/webm.udpsample,kalli123/webm.udpsample,ericzhouh/udpsample,iniwf/webm.udpsample,ericmckean/webm.udpsample,Acidburn0zzz/webm.udpsample,kalli123/webm.udpsample,gshORTON/webm.udpsample,abwiz0086/webm.udpsample,Maria1099/webm.udpsample,zofuthan/udpsample,kleopatra999/webm.udpsample,Suvarna1488/webm.udpsample,abwiz0086/webm.udpsample,ericmckean/webm.udpsample,iniwf/webm.udpsample,kim42083/webm.udpsample,ericzhouh/udpsample,matanbs/webm.udpsample,Suvarna1488/webm.udpsample,kim42083/webm.udpsample,webmproject/udpsample,reimaginemedia/webm.udpsample,zofuthan/udpsample,Maria1099/webm.udpsample,altogother/webm.udpsample