Otherwise we may get a tile height exceeding the maximum.
Fixes tests:
dEQP-VK.pipeline.render_to_image.core.2d.huge.height.r8g8b8a8_unorm
dEQP-VK.pipeline.render_to_image.core.2d.huge.height.r8g8b8a8_unorm_d16_unorm
dEQP-VK.pipeline.render_to_image.core.2d.huge.height.r8g8b8a8_unorm_s8_uint