fix(zynqmp): fix for incorrect afi write mask value

Currently, the AFIFM6_WRCTRL bus-width configuration is not happening
correctly due to the wrong register write mask value. To fix this issue
updated the mask value handling logic.

Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Signed-off-by: Akshay Belsare <Akshay.Belsare@amd.com>
Acked-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Change-Id: I8443c369a84339018310cfb6cd498d21474da3e4
1 file changed