Left-shifting a 32-bit integer by 32 bits or more results in UB. The
common values for vbif_xin_id[] are {10, 11} which means reg_shift
becomes 40/44. For IDs >= 8, the shift is meant to be relative to the
second 32-bit register, not to the first. Fix this issue by masking the
ID so that it will properly describe the intended shift.
Change-Id: Icd530a3bb7cfd9d087e2aecc763d24f775e20466
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>