Android: Fix changing keystore not asking for the password

Task-number: QTCREATORBUG-11853
Change-Id: Ib63744207beb5e6d0d0bdb0647c99b27d80d8b71
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

src/plugins/android/androiddeployqtwidget.cpp

@@ -289,6 +289,8 @@ void AndroidDeployQtWidget::updateKeyStorePath(const QString &path)
     Utils::FileName file = Utils::FileName::fromString(path);
     m_step->setKeystorePath(file);
     m_ui->signPackageCheckBox->setChecked(!file.isEmpty());
+    if (!file.isEmpty())
+        setCertificates();
 }
 
 void AndroidDeployQtWidget::certificatesAliasComboBoxActivated(const QString &alias)