pcm038: initialize PLLs from internal RAM ...

The PLL setup occasionally fails when the setup code runs
from SDRAM, so copy a little assembler helper function to
SRAM and execute it there.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Using correct board names all over the place ...

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>