Fix SSP problems when using serial EEPROM with serial
flash support enabled.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Clear memory from the end of the image to 4M.  This shouldn't
be necessary, but it is, as U-Boot code doesn't always clear
what it should...

Signed-off-by: John Jacques <john.jacques@lsi.com>
Remove old debug print statement.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Cleaned up preprocessor defines in the lock functions.

Signed-off-by: John Jacques <john.jacques@lsi.com>
Updated the 476 splash screen.

Signed-off-by: John Jacques <john.jacques@lsi.com>