mesa: Validate the layer selection of an array texture too

mesa: Validate the layer selection of an array texture too

Previously only the slice of a 3D texture was validated in the FBO
completeness check.  This fixes the failure in the 'invalid layer of an
array texture' subtest of piglit's fbo-incomplete test.

v2: 1D_ARRAY textures have Depth == 1.  Instead, compare against Height.

v3: Handle CUBE_MAP_ARRAY textures too.  Noticed by Marek.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "9.1 9.2" mesa-stable@lists.freedesktop.org