perf: create directories before copying single files

If we need to copy a single file from the linux source tree into
the perf source tree, we need to ensure that the directory structure
it requires has been created first.

(From OE-Core rev: 7c33f0b1ee35031aa97e5e5231f53d8502b583c9)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/perf/perf.bb

@@ -153,6 +153,8 @@ python copy_perf_source_from_kernel() {
         if os.path.isdir(src):
             oe.path.copyhardlinktree(src, dest)
         else:
+            src_path = os.path.dirname(s)
+            os.makedirs(os.path.join(dest_dir,src_path),exist_ok=True)
             bb.utils.copyfile(src, dest)
 }