i965/miptree: Use intel_miptree_copy for maps
i965/miptree: Use intel_miptree_copy for maps

What we're really doing is copying a texture not blitting it in the sense
of glBlitFramebuffers.  Also, the intel_miptree_copy function is capable of
properly handling compressed textures which intel_miptree_blit is not.

Reviewed-by: Topi Pohjolainen <749697f19798b7f640b17221fd283b903825f071@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97473
Cc: "13.0" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler