.gitignore: Ignore dump files

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

.gitignore

@@ -25,6 +25,7 @@ cscope.*
 .gdb_history
 .gdbinit
 core
+*.c.[0-9][0-9][0-9]t.*
 
 #
 # Backups / patches