pinctrl: lewisburg: Replace LBG_COMMUNITY() by INTEL_COMMUNITY_SIZE()

Use INTEL_COMMUNITY_SIZE() common macro instead custom LBG_COMMUNITY().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>