fixing push button reading to only compare buttons with the lowest 4 bits of the compare string
fixing push button reading to only compare buttons with the lowest 4 bits of the compare string

Azizou/stm32f0_devel,jgowans/stm32f0_devel,Azizou/stm32f0_devel,Azizou/stm32f0_devel,jgowans/stm32f0_devel,jgowans/stm32f0_devel