CMake: Expose *_regs.h to SWIG wrappers
CMake: Expose *_regs.h to SWIG wrappers

Some of the UPM libraries have a common C header with types used in both
the C and C++ source.  This commit adds these common header files to the
SWIG modules.

Signed-off-by: Noel Eck <1e36ab6ededef40f3f16bdbc1b09eee72c5d08cf@intel.com>

Propanu/upm,g-vidal/upm,intel-iot-devkit/upm,g-vidal/upm,stefan-andritoiu/upm,stefan-andritoiu/upm,g-vidal/upm,Propanu/upm,Propanu/upm,Propanu/upm,Propanu/upm,g-vidal/upm,Propanu/upm,intel-iot-devkit/upm,intel-iot-devkit/upm,stefan-andritoiu/upm,stefan-andritoiu/upm,intel-iot-devkit/upm,g-vidal/upm,g-vidal/upm,intel-iot-devkit/upm,stefan-andritoiu/upm,intel-iot-devkit/upm,stefan-andritoiu/upm