radv: Take variable descriptor counts into account for buffer entries.

Merged Bas Nieuwenhuizen requested to merge bnieuwenhuizen/mesa:variable-count-fixes into master

Fixes: b5e04e92 "radv: Support allocating variable size descriptor sets." Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111019

Edited by Bas Nieuwenhuizen

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