qcacld-3.0: Correctly disable the connection manager feature

Currently connection manager feature flag is disabled with the
comment line which is not the correct way to enable/disable the
feature.

Correctly disable the connection manager feature flag.

Change-Id: If39a945ea4d2c185d6231d0967688a8e243bd8fe
CRs-Fixed: 2731718

configs/default_defconfig

@@ -1121,5 +1121,5 @@ ifeq ($(CONFIG_ARCH_SDM660), y)
 CONFIG_WLAN_FEATURE_PKT_CAPTURE := y
 endif
 
-# enable connection manager
-#CONFIG_CM_ENABLE := y
+#Enable connection manager
+CONFIG_CM_ENABLE := n