uboot-phytec

arm: pxa: move SP check from start.S to cpuinfo.c

PXA start.S has a PXA (variant) specific check in
start.S. Move it to cpuinfo.c.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Marek Vasut <marex@denx.de>