libpit: add DeviceType = 8 entry for MMC with blksize 4096

Newer devices have an emmc with 4096 block size instead of 512.  These
seem to have DeviceType=8 instead of DeviceType=2.

heimdall/source/Interface.cpp

@@ -262,6 +262,10 @@ void Interface::PrintPit(const PitData *pitData)
 				Interface::Print("All (?)");
 				break;
 
+			case PitEntry::kDeviceTypeMMC4096:
+				Interface::Print("MMC 4096");
+				break;
+
 			default:
 				Interface::Print("Unknown");
 				break;

libpit/source/libpit.h

@@ -61,7 +61,8 @@ namespace libpit
 				kDeviceTypeOneNand = 0,
 				kDeviceTypeFile, // FAT
 				kDeviceTypeMMC,
-				kDeviceTypeAll // ?
+				kDeviceTypeAll, // ?
+				kDeviceTypeMMC4096 = 8 // block size 4096
 			};
 
 			enum