MDL-45821 behat: navigate back to scorm to avoid scroll

On Exiting scrom activity, it goes back to course
and scrolls to section. On slow machines next step
fails. To avoid such case navigate to home screen
and then follow next step.

mod/scorm/tests/behat/completion_condition_require_status.feature

@@ -84,6 +84,7 @@ Feature: Scorm multi-sco completion
     And I follow "Exit activity"
     And I wait until the page is ready
     Then I should see "ADV Multi-sco SCORM package"
+    And I am on homepage
     And I log out
     And I log in as "teacher1"
     And I follow "Course 1"

mod/scorm/tests/behat/multisco_review_mode.feature

@@ -45,6 +45,8 @@ Feature: Scorm multi-sco review mode.
     And I follow "Exit activity"
     And I wait until the page is ready
     And I should see "Basic Multi-sco SCORM package"
+    And I am on homepage
+    And I follow "Course 1"
     And I follow "Basic Multi-sco SCORM package"
     And I should see "Normal"
     And I press "Enter"
@@ -166,6 +168,8 @@ Feature: Scorm multi-sco review mode.
     And I follow "Exit activity"
     And I wait until the page is ready
     And I should see "ADV Multi-sco SCORM package"
+    And I am on homepage
+    And I follow "Course 1"
     And I follow "ADV Multi-sco SCORM package"
     And I should see "Normal"
     And I press "Enter"