[ARM] 5069/1: pxa: include pxa2xx-regs.h in reset.c for RSCR

The RCSR definition was moved into pxa2xx-regs.h.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>