lima/gpir: add limit of max 512 instructions

lima/gpir: add limit of max 512 instructions

It has been noted that the lima GP has a limit of 512 instructions,
after which the shaders don't work and fail silently.
This commit adds a check to make the shader compilation abort when the
shader exceeds this limit, so that we get a clear reason for why the
program will not work.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>