TWRP: swap DOWNLOAD mode for BOOTLOADER mode in reboot screen

Change-Id: I78083099520a6bd76440d02109636798787dae72
update twrp.fstab with internal storage reserve
add twrp.fstab to recovery build
update common HDX BoardConfig settings
used a combination of:
CyanogenMod/android_device_samsung_hlte
CyanogenMod/android_device_samsung_8974-common
CyanogenMod/android_device_samsung_qcom-common
hdx-common: add teamhacksung's charger res
add prebuilt dir
hdx-common: add prebuilt media_codecs.xml
overlay: add aosp overlay
add CM common makefile
add media_codecs
swapping to PRODUCT_COPY_FILES for initial bringup
common device setup update
remove qrngp for now
recovery: fix battery path
[HACK] Disable camera build
few changes
...
...
TEST: fix caf-new compilation
testing...