Reset tx_type in recursive transform block partitioning
Reset tx_type in recursive transform block partitioning

Temporarily reset the transform type in the inter modes when
recursive transform block partitioning is used. This resolves an
enc/dec mismatch issue in nextgenv2 codebase when both var-tx and
ext-tx experiments are turned on.

Change-Id: I2543f0a567243da95b237752d46964b07b669ad9

mbebenita/aom,smarter/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,mbebenita/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,luctrudeau/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,mbebenita/aom,smarter/aom,luctrudeau/aom,luctrudeau/aom,smarter/aom,GrokImageCompression/aom,luctrudeau/aom,mbebenita/aom,GrokImageCompression/aom,mbebenita/aom,mbebenita/aom,mbebenita/aom,GrokImageCompression/aom,GrokImageCompression/aom