disp: msm: re-factor debug bus logic to dump all test points

As per the HW teams guidelines, allow dumping the status of
all the HW blocks blocks at every test point.
This code brings in the following changes
1) Featurize the hw block  and test point range per target.
2) Reduce the debug bus entries and decrease the static
   memory foot print.
3) Allow analyzers to be integrated into the new format.

Change-Id: Ic3bc2c1b77f5617b0f81a2066b22e50cfd6ff8dd
Signed-off-by: Mahadevan <mahap@codeaurora.org>