coresight: use octal numbers for permission bits

Based on checkpatch update converting bad symbolic permission to
octal numbers. The reasoning behind it is that Symbolic macro
name are hard to understand and seem like random line noise it
would be better to use octal number which are easier to parse.

Change-Id: I279661af5a6afc2ea3e08c2442cd53891f97ff23
Signed-off-by: Satyajit Desai <sadesai@codeaurora.org>