Logs: Dump logs to new location

Needed b/c X runs as xorg user now, not root.

BUG=chromium:326650
TEST=tested dumping logs manually

Change-Id: Id86758bdb009d2d1df6bfdc1f7b8a71bf30929fa
Reviewed-on: https://chromium-review.googlesource.com/179176
Reviewed-by: Charles Mooney <charliemooney@chromium.org>
Commit-Queue: Andrew de los Reyes <adlr@chromium.org>
Tested-by: Andrew de los Reyes <adlr@chromium.org>

src/libevdev_event.c

diff --git a/src/libevdev_event.c b/src/libevdev_event.c
index 4b2fb20..b51056a 100644
--- a/src/libevdev_event.c
+++ b/src/libevdev_event.c
@@ -487,7 +487,7 @@
     int ret;
     EventStatePtr evstate = device->evstate;
 
-    FILE* fp = fopen("/var/log/cmt_input_events.dat", "wb");
+    FILE* fp = fopen("/var/log/xorg/cmt_input_events.dat", "wb");
     if (!fp) {
         LOG_ERROR(device, "fopen() failed for debug log");
         return;