lib: libc: arcmwdt: avoid double definition of clock_t and clockid_t

The clock_t and clockid_t types are already defined in ARC MWDT headers,
so they should not be defined again in Zephyr headers.

Signed-off-by: Ilya Tagunov <[email protected]>

Author: tagunil

lib/libc/arcmwdt/include/sys/types.h

@@ -9,6 +9,9 @@
 
 #include_next "sys/types.h"
 
+#define _CLOCK_T_DECLARED
+#define _CLOCKID_T_DECLARED
+
 #define _DEV_T_DECLARED
 #define _INO_T_DECLARED
 #define _NLINK_T_DECLARED