Fix incompatible Storwize/SVC commands.

Inconsistencies in the command line syntax between Storwize/SVC
models and firmware versions caused driver failures. This patch
makes commands compatible to fix driver crashes on the V3700 and
controllers with firmware version 6.3.

Change-Id: I51d5b97afa5419cdbf488f9e4e4597d22bb22f20
Fixes: bug 1163754
Fixed: bug 1163964
Merge "Fix incompatible Storwize/SVC commands."