MdeModulePkg/AtaAtapiPassThru: Correct the algo of calculating PRDT number to avoid beyond the boundary of 32 bit.
MdeModulePkg/AtaAtapiPassThru: Correct the algo of calculating PRDT number to avoid beyond the boundary of 32 bit.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tian, Feng <feng.tian@intel.com>
Reviewed-by: Zeng, Star <star.zeng@intel.com>


git-svn-id: 3158a46dfd52e07d1fda3e32e1ab2e353a00b20f@15667 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2