drm/nouveau/i2c/ga10[024]: initial support

Appears to be compatible with GM200 code.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2660,6 +2660,7 @@ nv170_chipset = {
 	.devinit = ga100_devinit_new,
 	.fb = ga100_fb_new,
 	.gpio = gk104_gpio_new,
+	.i2c = gm200_i2c_new,
 	.ibus = gm200_ibus_new,
 	.imem = nv50_instmem_new,
 	.mc = ga100_mc_new,
@@ -2676,6 +2677,7 @@ nv172_chipset = {
 	.devinit = ga100_devinit_new,
 	.fb = ga102_fb_new,
 	.gpio = ga102_gpio_new,
+	.i2c = gm200_i2c_new,
 	.ibus = gm200_ibus_new,
 	.imem = nv50_instmem_new,
 	.mc = ga100_mc_new,
@@ -2692,6 +2694,7 @@ nv174_chipset = {
 	.devinit = ga100_devinit_new,
 	.fb = ga102_fb_new,
 	.gpio = ga102_gpio_new,
+	.i2c = gm200_i2c_new,
 	.ibus = gm200_ibus_new,
 	.imem = nv50_instmem_new,
 	.mc = ga100_mc_new,