msm: ipa: Add assert for GRAN_SEL config for coal pipe

Assert if coal pipe uses anything other than gran 0 for coal pipe since
IPA 4.5 HW will configure coal pipe with pipe 0 config for gran_sel
which we set to 0 in IPA 4.5 GRAN changes.

Change-Id: Ia8f192279a64a7a20732a41f7defdfa02ea26c53
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>