Always start hls with first playlist in master playlist even if it iframes playlist

### ExoPlayer Version

2.18.2

### Devices that reproduce the issue

all devices

### Devices that do not reproduce the issue

_No response_

### Reproducible in the demo app?

Yes

### Reproduction steps

Start playback with first iframes playlist in master playlist

### Expected result

Start download non iframes playlist

### Actual result

Start download iframes playlist

### Media

Master playlist example
#EXTM3U
#EXT-X-VERSION:5

#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=10000000,URI="iframes/iframes.m3u8"

#EXT-X-STREAM-INF:BANDWIDTH=10000000,PROGRAM-ID=1
frames/playlist.m3u8

### Bug Report

- [ ] You will email the zip file produced by `adb bugreport` to dev.exoplayer@gmail.com after filing this issue.