net: lwm2m: simplify MATCH_ logic in do_read_op()
net: lwm2m: simplify MATCH_ logic in do_read_op()

Remove over-complicated match_type logic in do_read_op().  Replace
MATCH_* checks with actual path->level values.

Signed-off-by: Michael Scott <a17fed27eaa842282862ff7c1b9c8395a26ac320@foundries.io>

nashif/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,kraj/zephyr,ldts/zephyr,kraj/zephyr,nashif/zephyr,explora26/zephyr,Vudentz/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,punitvara/zephyr,finikorg/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,Vudentz/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,ldts/zephyr,kraj/zephyr,galak/zephyr,kraj/zephyr,ldts/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,finikorg/zephyr,galak/zephyr,Vudentz/zephyr,ldts/zephyr,nashif/zephyr,punitvara/zephyr,galak/zephyr,explora26/zephyr,Vudentz/zephyr,finikorg/zephyr,ldts/zephyr,explora26/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,galak/zephyr