Kdump fails to capture vmcore on RHEL7.4 POWER9

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Issue

Kdump fails to capture vmcore on RHEL7.4 POWER9
VFC driver appears to discover the LUNs. The vmcore capture process times out
waiting for the mpath mapping of the disk to appear.

Environment

RHEL7.4 on POWER9
Multipath VFC disk as kdump target

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