Fix false cache_lifetime usage in xml layouts

[yuriyDne]

Fix cache_lifetime usage with false value

Description

Fix
<argument name="cache_lifetime" xsi:type="boolean">false</argument>
Usage eg in
Magento/Swatches/view/frontend/layout/checkout_cart_configure_type_configurable.xml

Fixed Issues (if relevant)

1. magento/magento2#<issue_number>: Issue title
2. ...

Manual testing scenarios

Reproduced in 2.2 and 2.1 version

1. Add configurable product to cart
2. Move to cart
3. Edit Configurable product

Expected result
Configurable product options should be preselected

Actual result:
Configurable product options are not preselected

It happens because there is a check in
View/Element/AbstractBlock.php
protected function _loadCache() { if ($this->getCacheLifetime() === null || !$this->_cacheState->isEnabled(self::CACHE_GROUP)) { return false; }

Contribution checklist

• [x ] Pull request has a meaningful description of its purpose
• [x ] All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @yuriyDne. Thank you for your contribution
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[magento-engcom-team]

Hi @yuriyDne. Thank you for your contribution.
We will aim to release these changes as part of 2.2.6.
Please check the release notes for final confirmation.

Please, consider to port this solution to 2.3 release line.
You may use Porting tool to port commits automatically.