lima: avoid stomping over bound shader state when creating new shaders

lima: avoid stomping over bound shader state when creating new shaders

It shouldn't affect bound program state, and the current context state
shouldn't be relevant for shader creation precompiles anyway (level load
isn't going to have the eventual set of sampler views bound when you go to
draw with that shader).

Closes: #4306
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9089>