[BOOTDATA] Add FsType into default unattend.inf template

boot/bootdata/bootcd/unattend.inf

@@ -12,9 +12,9 @@ DestinationPartitionNumber = 1
 InstallationDirectory=ReactOS
 
 ; MBRInstallType=0  skips MBR installation
-; MBRInstallType=1  install MBR on floppy  
+; MBRInstallType=1  install MBR on floppy
 ; MBRInstallType=2  install MBR on hdd
-MBRInstallType=2 
+MBRInstallType=2
 
 FullName="MyName"
 ;OrgName="MyOrg"
@@ -38,6 +38,11 @@ FormatPartition=1
 ; 0 - disabled
 AutoPartition = 1
 
+; choose default file system type
+; 0 - FAT
+; 1 - BtrFS
+FsType = 0
+
 ; enable this setting to disable Gecko install
 ; yes - disabled
 ; no  - enabled