cfg80211: Specify frame and reason code for NL80211_CMD_DEL_STATION

The optional NL80211_ATTR_MGMT_SUBTYPE and NL80211_ATTR_REASON_CODE
attributes can now be included in NL80211_CMD_DEL_STATION to indicate to
the driver which frame (Deauthentication/Disassociation) and reason code
in that frame should be used to indicate removal to the specific
station. This is used by drivers that implement AP SME and generate
those frames internally.

Change-Id: Ic1b8ba98b5154909c2886a3e130f2846d9e88e76
CRs-Fixed: 743605
Git-commit: 988568669d171774b96e59fe35ef575df7f8cffd
Git-repo: https://git.kernel.org/cgit/linux/kernel/git/linville/wireless-next.git


Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Anand N Sunkad <asunka@codeaurora.org>