Revert "tools: regions only if bootloader is supported"

This reverts commit d7e0012.

Author: 0xc0170

tools/toolchains/mbed_toolchain.py

@@ -895,10 +895,6 @@ def _add_all_regions(self, region_list, active_region_name):
     def add_regions(self):
         """Add regions to the build profile, if there are any.
         """
-
-        if not getattr(self.target, "bootloader_supported", False):
-            return
-
         if self.config.has_regions:
             try:
                 regions = list(self.config.regions)
@@ -948,6 +944,7 @@ def add_regions(self):
             ram_available_regions = self.config.get_all_active_memories(
                 RAM_ALL_MEMORIES
             )
+
             for key, value in ram_available_regions.items():
                 ram_start, ram_size = value
                 self._add_defines_from_region(