drivers/ieee802154: Fix regression in uart pipe driver
drivers/ieee802154: Fix regression in uart pipe driver

A wrong name replacement was applied during commit
db11fcd1747c5c34a26e984f1483eaee1ee16fc1

Fixes issue #4165

Signed-off-by: Tomasz Bursztyka <ba81a3a719836727e6857ae83462b9f52ec41006@linux.intel.com>

Vudentz/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr,aceofall/zephyr-iotos,fbsder/zephyr,explora26/zephyr,Vudentz/zephyr,ldts/zephyr,nashif/zephyr,mbolivar/zephyr,zephyriot/zephyr,aceofall/zephyr-iotos,explora26/zephyr,aceofall/zephyr-iotos,explora26/zephyr,zephyrproject-rtos/zephyr,ldts/zephyr,mbolivar/zephyr,fbsder/zephyr,zephyriot/zephyr,punitvara/zephyr,fbsder/zephyr,nashif/zephyr,punitvara/zephyr,fbsder/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,kraj/zephyr,mbolivar/zephyr,fbsder/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,ldts/zephyr,kraj/zephyr,nashif/zephyr,Vudentz/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,punitvara/zephyr,finikorg/zephyr,punitvara/zephyr,ldts/zephyr,ldts/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,mbolivar/zephyr,kraj/zephyr,kraj/zephyr,Vudentz/zephyr,aceofall/zephyr-iotos,galak/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,aceofall/zephyr-iotos,finikorg/zephyr,zephyriot/zephyr,galak/zephyr,zephyriot/zephyr,galak/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,explora26/zephyr