boards: arm: apollo4p_evb add connector to apollo4p_evb

Generic Connector for the apollo4p_evb
Ran tests/drivers/gpio/gpio_basic_api
Ambiq does not support DUAL Edged Interrupts.
Added Connector Usages as defined by the Ambiq BSP.

Signed-off-by: Richard Wheatley <richard.wheatley@ambiq.com>