Decoder: Fixed hang in the case of dangling field

The u1_top_bottom_decoded  flag in the decoder context has been fixed
to be updated correctly in the case of dangling field

FPIIM-2117

Bug: 63315932
Test: ran POC after patching
Change-Id: I8db4ebeb94fba735ba45f365c37e52a202ea84cd
(cherry picked from commit 252628cffba8702e36b98c193bcd2fe67d8237ee)
1 file changed