drivers: gpio: gpio_mcux_lpc: Allocate no of gpio ISR using macro
drivers: gpio: gpio_mcux_lpc: Allocate no of gpio ISR using macro

Allocate no of gpio ISR using macro INPUTMUX_PINTSEL_COUNT.

Signed-off-by: Navin Sankar Velliangiri <49539127e3b30c16298735e95f2c28dfc9d80225@linumiz.com>

finikorg/zephyr,finikorg/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr