qcacld-3.0: Disable IBSS code

IBSS code is placed under "QCA_IBSS_SUPPORT" feature flag. IBSS code is
disabled and to enable it define "QCA_IBSS_SUPPORT" in default_defconfig.

ex. CONFIG_QCA_IBSS_SUPPORT := y

Change-Id: I08619dbed4661d9fc132adbcd1de2cd4470a2737
CRs-Fixed: 2542078

configs/default_defconfig

@@ -506,7 +506,6 @@ endif
 CONFIG_FEATURE_AP_MCC_CH_AVOIDANCE := y
 else
 CONFIG_QCOM_ESE := y
-CONFIG_QCA_IBSS_SUPPORT := y
 CONFIG_FEATURE_WLAN_RMC := y
 CONFIG_WLAN_OPEN_P2P_INTERFACE := y
 CONFIG_WLAN_ENABLE_SOCIAL_CHANNELS_5G_ONLY := y