drivers/spi: spi_context lock makes transceive function reentrant in DW
drivers/spi: spi_context lock makes transceive function reentrant in DW

No need to check on busy bit from hardware.

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

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