etnaviv: Beware of the PULSE_EATER

[Wladimir J. van der Laan]

> Did you by any chance test with the i.MX6 with GC2000 too?  It would be

Just verified: this is only an issue with GC3000, not GC2000. On GC2000
shader performance is the same with/without setting a value to PULSE_EATER.

Regards,
Wladimir