ipa: updates for ipa_reg_save()

* update number of channels to collect in reg_save
* enable collection for uC channels
* parse gsi fw version

Change-Id: Iae5bd9e56b076717e7a157b0883b1efb7681c061
Signed-off-by: Dor Deri <quic_dderi@quicinc.com>
8 files changed