Vlv2TbltDevicePkg: Fix build issues in DSC/FDF

https://bugzilla.tianocore.org/show_bug.cgi?id=911

Fix a the following issues in DSC/FDF files

* Remove references to  drivers that are not present
* Enable the Tianocore boot logo and BGRT table
* Enable full UEFI shell
* Enable more debug messages in DXE phase

Cc: David Wei <david.wei@intel.com>
Cc: Mang Guo <mang.guo@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: David Wei <david.wei@intel.com>