i965: Pass pointer to miptree as function parameter in intel_horizontal_texture_alignment_unit
i965: Pass pointer to miptree as function parameter in intel_horizontal_texture_alignment_unit

This will be used by next patch in the series.

Signed-off-by: Anuj Phogat <e2026475996c48f0b97fd37e84129b3912980428@gmail.com>
Reviewed-by: Neil Roberts <822ec91a7ef82248fd36162ca8ac3283eba70848@linux.intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler