radeonsi/gfx9: fix textureSize/imageSize for 1D textures
radeonsi/gfx9: fix textureSize/imageSize for 1D textures

Reviewed-by: Nicolai Hähnle <0d0be6cf5ad662651be2dc5dfd44aa2b09d4c1cc@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler