The RSA Data Security, Inc. implementation license bears a requirement
similar to the old problematic BSD license with advertising clause.
Change-Id: I877b71ff0548934b1c4fd87245696f53dedbdf26
This renames the vpx_codec/ directory to vpx/, to allow applications
to more consistently reference these includes with the vpx/ prefix.
This allows the includes to be installed in /usr/local/include/vpx
rather than polluting the system includes directory with an
excessive number of includes.
Change-Id: I7b0652a20543d93f38f421c60b0bbccde4d61b4f
