lcd4linux: Add limits header for PATH_MAX

Fixes compilation on musl.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/lcd4linux/patches/200-musl.patch

@@ -0,0 +1,10 @@
+--- a/plugin_i2c_sensors.c
++++ b/plugin_i2c_sensors.c
+@@ -68,6 +68,7 @@
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <dirent.h>
++#include <limits.h>
+ 
+ #include "debug.h"
+ #include "plugin.h"