SF: Update static sequence counter when injecting a sequence number

When generating layer trace, layers will be created with a sequence
number. However any supporting layer that is created (when mirroring
or color layer for blast) will use the static counter to gets its
sequence number. This might result in layers with duplicate sequence
numbers.

Fix this by updating the static sequence counter if a sequence number
is injected.

Test: atest TransactionTracingTest
Bug: 200284593
Change-Id: Ib64227a088d1cbf76b977604eaeb3b1421af63f5