fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.

# Set WS=3 for both nCS0 and nCS1.  This configuration is used by all official
# C11x, C139/140 and SE J100 firmwares that have been examined, i.e., by the
# official firmwares for all Compal models to which this init script applies.

w16 fffffb00 00A3
w16 fffffb02 00A3

# Set the debug visibility bit in the FFFF:FB0E register so we can use
# the flash mapping at 0x03000000 like on all other platforms.

w16 fffffb0e 006A