Platform support

Platform support changes are listed below,

V20000 G1 Supported for v8.5.6
V10000 G4R2 Supported for v8.5.6
V5000 G5 Supported for v8.5.6
V5000 G4R2 Supported for v8.5.6
V5000 G4R1 Supported for v8.5.6
VMware Supported for v8.5.6
V10000 G4R1 Dropped support in v8.5.6
X10GG2R2 Dropped support in v8.5.6
X10GG2R1 Dropped support in v8.5.6