msm: ipa: add IPA HW version check before setting BCR value

Set BCR (backward-compatibility register) value only
for IPAv2.5 core. This register value setting is relevant
to IPAv2.5.

Change-Id: I10eb034991c1c78d38a27aeec070f55366b6d190
Signed-off-by: Ravit Katzav <rkatzav@codeaurora.org>