pinctrl: intel: Update description in struct intel_community

It appears that most of the drivers, that are using struct intel_community,
utilize gpps rather than gpp_size. Update comment accordingly.

While here, correct the description of gpp_size, i.e. remove double space
and drop redundant 'etc.' part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

drivers/pinctrl/intel/pinctrl-intel.h

@@ -95,7 +95,7 @@ enum {
  * @features: Additional features supported by the hardware
  * @pin_base: Starting pin of pins in this community
  * @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK,
- *            HOSTSW_OWN,  GPI_IS, GPI_IE, etc. Used when @gpps is %NULL.
+ *            HOSTSW_OWN, GPI_IS, GPI_IE. Used when @gpps is %NULL.
  * @gpp_num_padown_regs: Number of pad registers each pad group consumes at
  *			 minimum. Use %0 if the number of registers can be
  *			 determined by the size of the group.
@@ -106,8 +106,8 @@ enum {
  * @regs: Community specific common registers (reserved for core driver)
  * @pad_regs: Community specific pad registers (reserved for core driver)
  *
- * Most Intel GPIO host controllers this driver supports each pad group is
- * of equal size (except the last one). In that case the driver can just
+ * In some of Intel GPIO host controllers this driver supports each pad group
+ * is of equal size (except the last one). In that case the driver can just
  * fill in @gpp_size field and let the core driver to handle the rest. If
  * the controller has pad groups of variable size the client driver can
  * pass custom @gpps and @ngpps instead.