+*v0.0x21.4:
+ 1) modify for rk3399.
+*v0.0x21.5:
+ 1) modify for mipiphy hsfreqrange.
+*v0.0x21.6:
+ 1) support drm iommu.
+*v0.0x21.7:
+* 1) remove memset function wrong called code.
+*v0.0x21.8:
+* 1) flash module exist risk, fix up it.
+*v0.0x21.9:
+ 1) fix drm iommu crash.
+ if process cameraserver was died during streaming, iommu resource
+ was not released correctly. when cameraserver was recovered and
+ streaming again, iommu resource may be conflicted.
+*v0.0x21.0xa:
+ 1) clock clk_vio0_noc would cause mipi lcdc no display on 3368h, remove it.
+*v0.0x21.0xb:
+ 1) some log is boring, so set print level more high.