msm: ipa: reduce active clients count on tag process timeout

TAG process holds IPA clocks by incrementing the ipa_active_clients count.
In case of tag process failure due to a timeout, the ipa_active_clients
count should be decremented.

Change-Id: I6735bfd7de0c0fe25118c4c37b24c9f05dc5c450
Signed-off-by: Gidon Studinski <gidons@codeaurora.org>