drm/nouveau/fb: namespace + nvidia gpu names (no binary change)

The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
index 0f7fc0c..1f865f6 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
@@ -1,5 +1,5 @@
-#ifndef __NOUVEAU_FB_REGS_04_H__
-#define __NOUVEAU_FB_REGS_04_H__
+#ifndef __NVKM_FB_REGS_04_H__
+#define __NVKM_FB_REGS_04_H__
 
 #define NV04_PFB_BOOT_0						0x00100000
 #	define NV04_PFB_BOOT_0_RAM_AMOUNT			0x00000003
@@ -17,5 +17,6 @@
 #	define NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_64MBITX16		0x00000028
 #	define NV04_PFB_BOOT_0_UMA_ENABLE			0x00000100
 #	define NV04_PFB_BOOT_0_UMA_SIZE				0x0000f000
+#define NV04_PFB_CFG0						0x00100200
 
 #endif