prima: extscan: Update API extscan_get_valid_channels

1. Add change to parse and fetch max channels
2. Add change to send no of channels within the limits of max channels

Change-Id: Idd856a4f2b3a67a3a2cb65962a457379e6551665
CRs-Fixed: 834122
1 file changed
tree: ff0d27317f81ad01c6376e9f6b5fc4be35479c19
  1. CORE/
  2. firmware_bin/
  3. riva/
  4. Android.mk
  5. Kbuild
  6. Kconfig
  7. Makefile