allow hal_dumpstate_default to access cma debugfs

It's useful for CMA memory debugging.

Bug: 233535442
Test: adb bugreport contains cma information in dumpstate_board.txt
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I65170d6b84f642e038a7901427c3673b40832af9
3 files changed