platform: Add support for sdxhedgehog

Add the required clock, platform id changes to support
sdxhedgehog.
Update the QUSB2 reset sequence on sdxhedgehog.

CRs-Fixed: 1076197
Change-Id: I8aa00b487b8366b8e294c8d98f434ff800f52d1b
diff --git a/platform/msm_shared/smem.h b/platform/msm_shared/smem.h
index e8af142..1d65783 100644
--- a/platform/msm_shared/smem.h
+++ b/platform/msm_shared/smem.h
@@ -459,6 +459,7 @@
 	MSM8996AU = 310,
 	APQ8096AU = 311,
 	APQ8096SG = 312,
+	SDXHEDGEHOG = 314
 };
 
 enum platform {