VT: print debug logs between nalunits -> decoder -> renderer

Use the property to control whether to print FPS information.

1) Following log will be printed for every nal units which are going to be provided to decoder
10-08 15:23:44.660 D 5626     8278     AAVCAssembler:  Access unit complete (1 nal units)
10-08 15:23:44.700 D 5626     8278     AAVCAssembler:  Access unit complete (1 nal units)

2) Following log will be printed for every frame which is going to be rendered.
10-08 15:23:44.865 D 5626     8282     CCodecBufferChannel: [c2.exynos.h264.decoder#49] queue buffer successful
10-08 15:23:44.865 D 5626     8282     CCodecBufferChannel: [c2.exynos.h264.decoder#49] queue buffer successful

Bug: 179124671
Test: Verify the property works
Change-Id: I0aa848bb75c0db1821c5a40577c5ca90984753e7
Merged-In: I0aa848bb75c0db1821c5a40577c5ca90984753e7