sys: byteorder: Fix incorrect shift in sys_get_be48/le48
sys: byteorder: Fix incorrect shift in sys_get_be48/le48

Fixes an incorrect left-shift value that was introducing
extra 0x00 bytes to the result.

Signed-off-by: Eric Johnson <96f164ad4d9b2b0dacf8ebee2bb1eeb3aa69adf1@liveathos.com>

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