This is another set of changes that replace JR and JALR instructions
with JIC and JIALC for mips32r6. Macroassembler Jump and Call functions
now use JIC and JIALC if branch delay slot is not used. Code patching is
adjusted to work with new changes and few minor fixes are added.

BUG=

Review URL: https://codereview.chromium.org/1807263003

Cr-Commit-Position: refs/heads/master@{#35071}