PNO scan is failing to start because it is coming with 97 channels
but the current max number of channels in PNO scan is 60. To allow
for a larger number of channels, increase SCAN_PNO_MAX_NETW_CHANNELS_EX
to 100.
Change-Id: I3ac08f83f9f500899656caf48c112c33580cef70
CRs-Fixed: 2585685