Zero-padding branch code out to 4, as per GC instructions
Really only matters for ES.
Would matter for FR, but it's currently disabled.

Change-Id: I598060f97a3a5b52a0dde9263d49b846608e34b5
Merge "Zero-padding branch code out to 4, as per GC instructions Really only matters for ES. Would matter for FR, but it's currently disabled."