PCI: Fix typos and whitespace errors

Fix various typos and whitespace errors:

  s/Synopsis/Synopsys/
  s/Designware/DesignWare/
  s/Keystine/Keystone/
  s/gpio/GPIO/
  s/pcie/PCIe/
  s/phy/PHY/
  s/confgiruation/configuration/

No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
index d29c020..e71450b 100644
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/dwc/pcie-designware-host.c
@@ -1,5 +1,5 @@
 /*
- * Synopsys Designware PCIe host controller driver
+ * Synopsys DesignWare PCIe host controller driver
  *
  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com