gm200/ir: add native OP_SQRT support

gm200/ir: add native OP_SQRT support

./GpuTest /test=pixmark_piano 1024x640 30sec:
301 -> 327 points

shader-db:
total instructions in shared programs : 5472103 -> 5456166 (-0.29%)
total gprs used in shared programs    : 647530 -> 647522 (-0.00%)
total shared used in shared programs  : 389120 -> 389120 (0.00%)
total local used in shared programs   : 21064 -> 21064 (0.00%)
total bytes used in shared programs   : 58459304 -> 58288696 (-0.29%)

                local     shared        gpr       inst      bytes
    helped           0           0          27        8281        8281
      hurt           0           0          21         431         431

v2: use NVISA_GM200_CHIPSET

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Karol Herbst <kherbst@redhat.com>