pinctrl: intel: Introduce INTEL_COMMUNITY_*() to unify community macros

Now it becomes visible that we can deduplicate SoC specific
*_COMMUNITY() macros across the Intel pin control drivers.
For that, introduce a common INTEL_COMMUNITY_GPPS() and
INTEL_COMMUNITY_SIZE() macros in the pinctrl-intel.h.

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