Disable RTC support for UBLOX_EVK_ODIN_W2.
Disable RTC support for UBLOX_EVK_ODIN_W2.

This board inherits from STM_FAMILY, but drivers for this board are not consistent with the new standards.
This board needs to be disabled for now.

betzw/mbed-os,c1728p9/mbed-os,betzw/mbed-os,betzw/mbed-os,mbedmicro/mbed,c1728p9/mbed-os,andcor02/mbed-os,c1728p9/mbed-os,betzw/mbed-os,betzw/mbed-os,mbedmicro/mbed,andcor02/mbed-os,mbedmicro/mbed,c1728p9/mbed-os,kjbracey-arm/mbed,mbedmicro/mbed,andcor02/mbed-os,kjbracey-arm/mbed,andcor02/mbed-os,c1728p9/mbed-os,mbedmicro/mbed,c1728p9/mbed-os,kjbracey-arm/mbed,betzw/mbed-os,andcor02/mbed-os,kjbracey-arm/mbed,andcor02/mbed-os