Merge branch 'pci/controller/j721e'

- Use devm_clk_get_optional_enabled() instead of open-coding
  devm_clk_get_optional() and clk_prepare_enable() (Anand Moon)

* pci/controller/j721e:
  PCI: j721e: Use 'pcie->reset_gpio' directly and drop the local variable
  PCI: j721e: Use devm_clk_get_optional_enabled() to get and enable the clock