perf bpf-loader: Fix debugging message typo

Go over the tools/ files that are maintained in Arnaldo's tree and
fix common typos: half of them were in comments, the other half
in JSON files.

No change in functionality intended.

Committer notes:

This was split from a larger patch as there are code that is,
additionally, maintained outside the kernel tree, so to ease cherry
picking and/or backporting, split this into multiple patches.

This one has information that is presented to the user, albeit in debug
mode.

Signed-off-by: Ingo Molnar <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Wang Nan <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/util/bpf-loader.c

···
 			if (err)
 				return ERR_PTR(-BPF_LOADER_ERRNO__COMPILE);
 		} else
-			pr_debug("bpf: successfull builtin compilation\n");
+			pr_debug("bpf: successful builtin compilation\n");
 		obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, filename);
 
 		if (!IS_ERR_OR_NULL(obj) && llvm_param.dump_obj)