Add header files needed by Bravo/Bravoc board files

This commit adds the header files listed below from nikez 3.0.16 kernel

- arch/arm/mach-msm/dex_comm.h
- arch/arm/mach-msm/include/mach/bcm_bt_lpm.h
- arch/arm/mach-msm/include/mach/board-bravo-microp-common.h
- arch/arm/mach-msm/include/mach/htc_acoustic_qsd.h
- arch/arm/mach-msm/include/mach/htc_battery.h
- arch/arm/mach-msm/include/mach/msm_flashlight.h
- arch/arm/mach-msm/include/mach/msm_hsusb_hw.h
- arch/arm/mach-msm/include/mach/msm_qdsp6_audio.h
- arch/arm/mach-msm/include/mach/msm_serial_debugger.h
- arch/arm/mach-msm/irq.h
- arch/arm/mach-msm/pmic.h
- include/linux/akm8973.h
- include/linux/capella_cm3602_htc.h
- include/linux/debug_by_vibrator.h
- include/linux/ds2784_battery.h
- include/linux/tpa2018d1.h
- include/linux/wlan_plat.h