move ARRAY_SIZE macro to types.h

The ARRAY_SIZE macro was defined in several target files, so move it
to types.h.

This patch also removes two other identical macros: DIM (from jtag.h)
and asizeof (from arm11.h).

src/jtag/core.c

@@ -586,7 +586,7 @@ int jtag_add_statemove(tap_state_t goal_state)
 		unsigned tms_bits  = tap_get_tms_path(cur_state, goal_state);
 		unsigned tms_count = tap_get_tms_path_len(cur_state, goal_state);
 		tap_state_t moves[8];
-		assert(tms_count < DIM(moves));
+		assert(tms_count < ARRAY_SIZE(moves));
 
 		for (unsigned i = 0; i < tms_count; i++, tms_bits >>= 1)
 		{

src/jtag/interface.c

@@ -363,7 +363,7 @@ const char *tap_state_name(tap_state_t state)
 {
 	unsigned i;
 
-	for (i = 0; i < DIM(tap_name_mapping); i++) {
+	for (i = 0; i < ARRAY_SIZE(tap_name_mapping); i++) {
 		if (tap_name_mapping[i].symbol == state)
 			return tap_name_mapping[i].name;
 	}
@@ -374,7 +374,7 @@ tap_state_t tap_state_by_name(const char *name)
 {
 	unsigned i;
 
-	for (i = 0; i < DIM(tap_name_mapping); i++) {
+	for (i = 0; i < ARRAY_SIZE(tap_name_mapping); i++) {
 		/* be nice to the human */
 		if (strcasecmp(name, tap_name_mapping[i].name) == 0)
 			return tap_name_mapping[i].symbol;

src/jtag/jtag.h

@@ -38,14 +38,6 @@
 #define DEBUG_JTAG_IOZ 64
 #endif
 
-/*-----<Macros>--------------------------------------------------*/
-
-/**
- * When given an array, compute its DIMension; in other words, the
- * number of elements in the array
- */
-#define DIM(x)					(sizeof(x)/sizeof((x)[0]))
-
 /*-----</Macros>-------------------------------------------------*/
 
 /**