* Instruction sysvar fixes, additions (#20958)
(cherry picked from commit 4fe3354c8f
)
# Conflicts:
# programs/bpf/rust/sysvar/src/lib.rs
# programs/bpf/tests/programs.rs
# sdk/program/src/sysvar/instructions.rs
* resolve conflicts
Co-authored-by: Jack May <jack@solana.com>