Fixing the Mbed OS crash reporting and enable green tea test for bare metal.

Added missing mbed_error_initialize function call in bare metal boot code which is used
to retrieve the crash report from RAM in case of any previous abnormal re-boot but this function call is present in RTOS boot code.

Author: rajkan01

TESTS/mbed_platform/crash_reporting/main.cpp

@@ -13,9 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#if !defined(MBED_CONF_RTOS_PRESENT)
-#error [NOT_SUPPORTED] crash_reporting test cases require a RTOS to run.
-#else
 #include "mbed.h"
 #include "mbed_error.h"
 #include "mbed_crash_data_offsets.h"
@@ -83,4 +80,3 @@ int main(void)
 }
 
 #endif // !MBED_CONF_PLATFORM_CRASH_CAPTURE_ENABLED
-#endif // !defined(MBED_CONF_RTOS_PRESENT)

platform/source/mbed_sdk_boot.c

@@ -76,6 +76,7 @@ int $Super$$main(void);
 int $Sub$$main(void)
 {
     mbed_main();
+    mbed_error_initialize();
     return $Super$$main();
 }
 
@@ -109,6 +110,7 @@ void software_init_hook(void)
 int __wrap_main(void)
 {
     mbed_main();
+    mbed_error_initialize();
     return __real_main();
 }