sdk: Add SyscallStubs to enable syscall interception when building programs for non-BPF (bp #12984) (#12993)

* Add SyscallStubs to enable syscall interception when building programs for non-BPF

(cherry picked from commit 9c53e1dfb2)

* Remove program_stubs!()

(cherry picked from commit 6d5889bdb5)

Co-authored-by: Michael Vines <mvines@gmail.com>

programs/bpf/rust/invoked/src/processor.rs

@@ -194,6 +194,3 @@ fn process_instruction(
 
     Ok(())
 }
-
-// Pull in syscall stubs when building for non-BPF targets
-solana_sdk::program_stubs!();