fix deviceNumInterrupts and sauNumRegions

parser was creating SVDCpu fields from the wrong source in SVD file. Fixed the two errors.

Author: CrustyAuklet

python/cmsis_svd/parser.py

@@ -514,8 +514,8 @@ def _parse_device(self, device_node):
             vtor_present=_get_int(cpu_node, 'vtorPresent'),
             nvic_prio_bits=_get_int(cpu_node, 'nvicPrioBits'),
             vendor_systick_config=_get_int(cpu_node, 'vendorSystickConfig'),
-            device_num_interrupts=_get_int(cpu_node, 'vendorSystickConfig'),
-            sau_num_regions=_get_int(cpu_node, 'vendorSystickConfig'),
+            device_num_interrupts=_get_int(cpu_node, 'deviceNumInterrupts'),
+            sau_num_regions=_get_int(cpu_node, 'sauNumRegions'),
             sau_regions_config=_get_text(cpu_node, 'sauRegionsConfig')
         )