vc4: Fix fbo-generatemipmap-formats for NPOT.
vc4: Fix fbo-generatemipmap-formats for NPOT.

Single-sampled texture miplevels > 1 are stored in POT-aligned areas, but
we only get one value to control the stride of the src and dst for single
sampled buffers.  A RCL tile blit from level != 1 to level == 0 would
therefore load from the wrong stride.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler