nvidiafb: Use generic DDC reading

Update driver to use generic DDC reading

---

 drivers/video/Kconfig         |    1 +
 drivers/video/nvidia/nv_i2c.c |   45 +++--------------------------------------
 2 files changed, 4 insertions(+), 42 deletions(-)

index 3bacde1..736556a 100644
@@ -701,6 +701,7 @@ config FB_NVIDIA
 	depends on FB && PCI
 	select I2C_ALGOBIT if FB_NVIDIA_I2C
 	select I2C if FB_NVIDIA_I2C
+	select FB_DDC if FB_NVIDIA_I2C
 	select FB_MODE_HELPERS
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA

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