[QC-HAL] Check for null nl socket before passing commands

Disabling NAN results in a crash due to a null command socket. Add
null check first.
Bug: 62782588
Test: crash no longer observed, NAN functionality still available
Git-commit: 337510e659aa5d5f220fe613896335bd4136c94c
Git-repo: platform/hardware/qcom/wlan.git
CRs-Fixed: 2090288
Change-Id: I6d94007d34f532d6cc5c015b504f68aaa3a4cda1
1 file changed
tree: 03f15535aa451e9fee370efaf7ce9c202a82f82e
  1. cld80211-lib/
  2. qcwcn/
  3. wcnss-service/
  4. Android.mk