Fix HSMC interrupt ID, PMECC registers and EBI ones.

Fixes: d9c41bf3 ("ARM: dts: at91: Declare EBI/NAND controllers")
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>