i965: consider a 'base level' when calculating width0, height0, depth0
I guess that when we calculating the width0, height0, depth0 to use for function 'intel_miptree_create' we need to consider the 'base level' like it is done in the 'intel_miptree_create_for_teximage' function.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107987 Signed-off-by: Andrii Simiklit andrii.simiklit@globallogic.com Reviewed-by: Kenneth Graunke kenneth@whitecape.org (cherry picked from commit 2b7d5c32)