MdeModulePkg: Clean up source files

1. Do not use tab characters
2. No trailing white space in one line
3. All files must end with CRLF

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c

@@ -236,7 +236,7 @@ RegisterPciDevice (
   PciIo = &(PciIoDevice->PciIo);
   Data8 = PCI_INT_LINE_UNKNOWN;
   PciIo->Pci.Write (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &Data8);
- 
+
   //
   // Process OpRom
   //
@@ -296,7 +296,7 @@ RegisterPciDevice (
           PciIoDevice->PciIo.RomImage,
           PciIoDevice->PciIo.RomSize
           );
-      }   
+      }
     }
   }