arch/arm/src/stm32f0l0: Some fixes for a clean build. Still have a problem with lots of error messages coming from kconfig-mconf, but the configuation looks fine. Sometimes kconfig errors are difficult to spot. I would appreciate it anyone can spot the issue.
arch/arm/src/stm32f0l0/hardware: Rename the chip directory to hardware. This will hopefully eliminate some problems that I have seen with the chip include paths not being unique in more complex configuartions.
configs/nucleo-f072rb, configs/nucleo-f091rc, configs/stm32f051-discovery, and configs/stm32f072-discovery: Update for all of the naming changes made in arch/arm/src/stm32f0l0
arch/arm/include/stm32f0l0: Rename stm32f0 to stm32f0l0 to make a speace for STM32 L0. Rename files, functions and defines, removeing the f0_ from the names in order to make them MCU agnostic.
arch/arm/src/stm32f0l0: Rename stm32f0 to stm32f0l0 to make a speace for STM32 L0. Rename files, functions and defines, removeing the f0_ from the names in order to make them MCU agnostic.