Respect target.application-profile setting for Greentea build

MBED_GREENTEA_TEST_BAREMETAL can become deprecated and be removed.
Respect target.application-profile setting instead to resolve link
library.

Author: ccli8

TESTS/configs/greentea_baremetal.json5

@@ -1,7 +1,8 @@
 {
     "target_overrides": {
         "*": {
-            "target.c_lib": "small"
+            "target.c_lib": "small",
+            "target.application-profile": "bare-metal"
         }
     },
     "overrides": {

tools/cmake/mbed_greentea.cmake

@@ -92,7 +92,9 @@ function(mbed_greentea_add_test)
             ${MBED_GREENTEA_TEST_SOURCES}
     )
 
-    if(MBED_GREENTEA_TEST_BAREMETAL)
+    # Resolve link library based on target.application-profile setting
+    get_target_property(MBED_CORE_FLAGS_TARGET_LINK_LIBRARIES mbed-core-flags INTERFACE_LINK_LIBRARIES)
+    if(NOT "mbed-rtos-flags" IN_LIST MBED_CORE_FLAGS_TARGET_LINK_LIBRARIES)
         list(APPEND MBED_GREENTEA_TEST_REQUIRED_LIBS mbed-baremetal)
     else()
         list(APPEND MBED_GREENTEA_TEST_REQUIRED_LIBS mbed-os)