[PATCH 14/15] OMAP: GPIO: Use memset for omap_gpio_reg_offs

Tarun Kanti DebBarma [off-list ref] writes:

From: Charulatha V <redacted>

Use memset to fill omap_gpio_reg_offs structure with 0xFFFF
instead of filling each and every undefined register offset
separately with USHRT_MAX in a given OMAP SoC. This would ease
while adding new register offsets in the future SoCs.

Signed-off-by: Charulatha V <redacted>
Signed-off-by: Tarun Kanti DebBarma <redacted>

This can be dropped in favor of using zero to indicate a non-existant
register offset.  Only the revision register needs a special case of
using USHRT_MAX since zero can be a valid offset for the revision
register.

Kevin