pvr: Compete pvr_calc_fscommon_size_and_tiles_in_flight() + minor fix.
Signed-off-by: Karmjit Mahil Karmjit.Mahil@imgtec.com
/cc @frankbinns , @rajnesh-kanwal
Signed-off-by: Karmjit Mahil Karmjit.Mahil@imgtec.com
/cc @frankbinns , @rajnesh-kanwal