wlan: fix compilation errors for PNO and ROAM_SCAN_OFFLOAD feature flags

WLAN driver fails to compile once FEATURE_WLAN_SCAN_PNO and
FEATURE_ROAM_SCAN_OFFLOAD are disabled in KBUILD.

Patch takescare of reported build failures when either or both of
features are disabled.

Change-Id: Iaaf9653653ca5e0c1805c2a97709b68f8b90a699
CRs-Fixed: 572897
5 files changed
tree: bf9e32544a89c6cde1fb4b08611d7aee532fc9cd
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig