Fix Coverity issues in acl_globals_test.cpp

Fixes:
```
test/acl_globals_test.cpp:697:1:
  Type: Unchecked return value (CHECKED_RETURN)

test/acl_globals_test.cpp:697:1: Unchecked call to function
  1. check_return: Calling "acl_set_hal" without checking return value (as is done elsewhere 27 out of 31 times).
src/acl_globals.cpp:206:3: Examples where return value from this function is checked
  2. example_checked: Example 1: "acl_set_hal(board_hal)" has its value checked in "acl_set_hal(board_hal)".
test/acl_hal_test.cpp:302:3: Examples where return value from this function is checked
  3. example_checked: Example 2: "acl_set_hal(&simple_hal)" has its value checked in "acl_set_hal(&simple_hal)".
test/acl_hal_test.cpp:180:3: Examples where return value from this function is checked
  4. example_checked: Example 3: "acl_set_hal(&simple_hal)" has its value checked in "1 == acl_set_hal(&simple_hal)".
test/acl_hal_test.cpp:231:3: Examples where return value from this function is checked
  5. example_checked: Example 4: "acl_set_hal(&bad_hal)" has its value checked in "0 == acl_set_hal(&bad_hal)".
test/acl_hal_test.cpp:234:3: Examples where return value from this function is checked
  6. example_checked: Example 5: "acl_set_hal(&bad_hal)" has its value checked in "0 != acl_set_hal(&bad_hal)".
```

Author: IlanTruanovsky

test/acl_globals_test.cpp

@@ -694,7 +694,7 @@ const acl_system_def_t *acl_test_get_empty_system_def() {
 }
 
 TEST_GROUP(acl_globals_undef){void setup(){acl_mutex_wrapper.lock();
-acl_set_hal(acl_test_get_simple_hal());
+CHECK(acl_set_hal(acl_test_get_simple_hal()));
 }
 void teardown() {
   acl_reset_hal();