omap3: defconfigs: remove SYSFS_DEPRECATED flag

Remove the SYSFS_DEPRECATED flag from OMAP3 board defconfigs
This is a deprecated feature no longer needed.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>