Fixed Security Resource Flags and Interface

Fixed Security Resource Flags and Interface

OCResourceProperty Fixed for Following Security Resources
- doxm: OC_OBSERVABLE Removed
- cred, pstat: changed from OC_RES_PROP_NONE to OC_SECURE

Patch #2: OC_DISCOVERVABLE added to pstat
Patch #4: oic.mi.def removed

Change-Id: I35978a242636754977724045780af0082562b525
Signed-off-by: Jongmin Choi <jminl.choi@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/8951
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jongsung Lee <js126.lee@samsung.com>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>