[RFC v2 17/24] powerpc, fbdev: Use arch_nvram_ops methods instead of nvram_read_byte() and nvram_write_byte()

Make use of arch_nvram_ops in device drivers so that the nvram_* function exports can be removed. Since they are no longer global symbols, rename the PPC32 nvram_* functions appropriately. Add the missing CONFIG_NVRAM test to imsttfb to avoid a build failure. Signed-off-by: Finn Thain ---

[RFC v2 17/24] powerpc, fbdev: Use arch_nvram_ops methods instead of nvram_read_byte() and nvram_write_byte()

Make use of arch_nvram_ops in device drivers so that the nvram_* function exports can be removed. Since they are no longer global symbols, rename the PPC32 nvram_* functions appropriately. Add the missing CONFIG_NVRAM test to imsttfb to avoid a build failure. Signed-off-by: Finn Thain