qcacld-3.0: Fix logging issue in NL80211_RATE_INFO_BITRATE32

Even though the bitrate is greater than zero, because of
incorrect conditional check, error log "Invalid bitrate" is
getting printed.

Hence, fix this by adding proper conditional check.

Change-Id: I2076c7a90e735e4a278f4d5894e51abc8bd091c0
CRs-Fixed: 2250687
1 file changed