ARM: OMAP2+: using strlcpy instead of strncpy

the fields must be null-terminated:
the caller may use it as null-terminted string, next.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>