CA-58172:Better text for VDI_ON_BOOT_MODE_INCOMPATABLE_WITH_OPERATION error

Signed-off-by: Akshay Ramani <akshay.ramani@citrix.com>
Correct the spelling of vdi_on_boot_mode_incompatable_with_operation
Fix spelling
Merge pull request #1353 from akshayramani/CA-58172

CA-58172:Better text for VDI_ON_BOOT_MODE_INCOMPATABLE_WITH_OPERATION er...