msm: ipa3: Fix IPA aggregation register val-mask calculation

The register value and mask used to configure IPA
aggregation are miscalculated at IPA HAL.
The mask value used per H/W version is pre-shifted
and there is no need to shift it.

Change-Id: Ia269e91a96430fc96975cb15b6b37b250f05eda7
Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>