msm: HTC: fighter: audio board file clean-up

This is all cosmetic while I was looking for any problems in fighter's
audio board file.

1. double entry of pm8921.h
2. tlv not used
3. system_rev = 128
4. no hdmi support
5. whitespace and #if 0 removal

Change-Id: Ifcda73f987f758c4a9843d23e2a3ea22480e7a0e
Merge "msm: HTC: fighter: audio board file clean-up" into cm-10.2