mesa: Add EXT_instanced_arrays support
The support for ARB_instanced_arrays already exists for big GL, reuse the same PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR for this extension.
Edited by Corentin Noël
The support for ARB_instanced_arrays already exists for big GL, reuse the same PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR for this extension.