msm: ipa3: enable DCD (dynamic clock division)

enable DCD in GCC during IPA's idle time as described in the
HPG for IPA versions 3.5 and above.

Change-Id: I62f76228f6d5d76b80caf91c3319760cd3d00941
CRs-Fixed: 1057491
Signed-off-by: Amir Levy <alevy@codeaurora.org>
diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_i.h b/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
index db1f52c..d0c5c9d 100644
--- a/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
+++ b/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
@@ -2031,4 +2031,5 @@
 struct dentry *ipa_debugfs_get_root(void);
 bool ipa3_is_msm_device(void);
 struct device *ipa3_get_pdev(void);
+void ipa3_enable_dcd(void);
 #endif /* _IPA3_I_H_ */