Add op to choose twrp or cwm partition table
 Remove unsed var from graphics_en.c:gr_text()
 Modified BoardConfig.mk to support twrp && cwm
 changes file:
    BoardConfig.mk
    configs/fstab.qcom
    configs/twrp.fstab
    recovery/graphics_en.c

Change-Id: I60af614edc0d8a8f305e9bdeac3cfe2833571447
Signed-off-by: sndnvaps <sndnvaps@gmail.com>