drivers: hwinfo: stm32: mark STM32WB0 series as incompatible

The existing hwinfo driver for STM32 is incompatible with STM32WB0 series.
Prevent compiling the driver if the target's series is STM32WB0.
This fixes the build failure on the drivers.hwinfo.api test.

Signed-off-by: Mathieu Choplain <mathieu.choplain@st.com>