drivers: pcie: endpoint: Use DEVICE_DT_INST_GET() API
drivers: pcie: endpoint: Use DEVICE_DT_INST_GET() API

Replace current use of DEVICE_GET() with DEVICE_DT_INST_GET().

Signed-off-by: Raveendra Padasalagi <a1424e2d18b901eeb2bb33aaa5c4704d49b42240@broadcom.com>

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