Disable fast reboot on OmniOS, and fix AD_FASTREBOOT spelling error.

*** 156,166 ****
                              Fast Reboot by Default
                              </loctext>
                          </common_name>
                          <description>
                              <loctext xml:lang='C'>
! When set to true, reboot(1M) and init(1M) 6 will call uadmin(2) with AD_FASTREOOT, which will bypass firmware.
                              </loctext>
                          </description>
                      </prop_pattern>
                      <prop_pattern name='fastreboot_onpanic' type='boolean'
                          required='true'>
--- 156,166 ----
                              Fast Reboot by Default
                              </loctext>
                          </common_name>
                          <description>
                              <loctext xml:lang='C'>
! When set to true, reboot(1M) and init(1M) 6 will call uadmin(2) with AD_FASTREBOOT, which will bypass firmware.
                              </loctext>
                          </description>
                      </prop_pattern>
                      <prop_pattern name='fastreboot_onpanic' type='boolean'
                          required='true'>