NAND: Remove ONFI detection message to from bootup log

NAND: Remove ONFI detection message to from bootup log

Without this patch, boot shows this messages upon NAND detection:

NAND:  ONFI flash detected
ONFI param page 0 valid
ONFI flash detected
ONFI param page 0 valid
128 MiB

With this patch, its back to the U-Boot "standard":

NAND:  128 MiB

Tested on x600 (SPEAr600).

Signed-off-by: Stefan Roese <[email protected]>
Cc: Amit Virdi <[email protected]>
Cc: Vipin Kumar <[email protected]>
Cc: Scott Wood <[email protected]>
Acked-by: Amit Virdi <[email protected]>
Signed-off-by: Scott Wood <[email protected]>