arm: mx6: tqma6: use default CONFIG_SYS_PBSIZE

this removes a config entry and uses the default value
defined in config_fallbacks.h. This implements the same
behaviour as a patch series for other i.MX6 boards from
Freescale

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
1 file changed