Patch for HW ZQ on i.MX6

Document created by JayTu Employee on Jul 13, 2017
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Issue description:

ZQ calibration issue with LPDDR2 memory with two chip selects 


Micron has verified it on my customer's board with i.MX6Q. (ECT-SYT-1163 for FIC.pdf)

The patch is made based on lp 5.1, see attachment.