freedreno/a3xx: unify vertex/texture formats into a single table

The table contains all the relevant information about each format. The
helper functions now just do lookups in the table.

Note that this adds support for a lot of formats that were previously
unsupported. Additionally it adds disabled support for integer render
buffers, which will require more work to actually enable.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Rob Clark <robclark@freedesktop.org>

docs/relnotes/10.5.0.html

@@ -44,6 +44,10 @@ Note: some of the new features are only available with certain drivers.
 </p>
 
 <ul>
+<li>GL_ARB_texture_rg on freedreno</li>
+<li>GL_EXT_packed_float on freedreno</li>
+<li>GL_EXT_texture_shared_exponent on freedreno</li>
+<li>GL_EXT_texture_snorm on freedreno</li>
 </ul>