The resource name should be CinderBackendDellEMCPowerFle instead of
CinderBackendPowerFlex.
Change-Id: Idbeda0d219a231e050a7d11040a7e41adfdddd18
Closes-Bug: #1903634
VxFlex OS driver is rebranded to PowerFlex.
This patch adds support for PowerFlex.
Will deprecate the VxFlexOS template in
a new patch.
Depends-On: https://review.opendev.org/#/c/743852/
Change-Id: I94310bf84a0af7a735bd6e1c0038686b0d0abfc8