msm: ipa: driver upgrade for new IPAv2.5 core

Driver code changes to work with new IPAv2.5 core.
Changes include:
- registers interface changes (base offset
  change, fields offset change and addition of new registers)
- support higher HOLB timeout value (32 bit).

Change-Id: I294d6fb6995f19a8e31733e00f6697369f65fd6e
Signed-off-by: Ravit Katzav <rkatzav@codeaurora.org>