debug: Fix typo DMM -> DNM (we don't need DMM twice)
This prevented NM related log messages from showing up at stderr
diff --git a/openbsc/src/debug.c b/openbsc/src/debug.c
index d3d58f3..c02c086 100644
--- a/openbsc/src/debug.c
+++ b/openbsc/src/debug.c
@@ -35,7 +35,7 @@
static struct debug_category default_categories[Debug_LastEntry] = {
[DRLL] = { .enabled = 1, .loglevel = 0},
[DCC] = { .enabled = 1, .loglevel = 0},
- [DMM] = { .enabled = 1, .loglevel = 0},
+ [DNM] = { .enabled = 1, .loglevel = 0},
[DRR] = { .enabled = 1, .loglevel = 0},
[DRSL] = { .enabled = 1, .loglevel = 0},
[DMM] = { .enabled = 1, .loglevel = 0},