target/adiv5: probe MEM-AP supported transfer sizes including large data

Based on Daniel Goehring's [1] and Peter Collingbourne's [2] work.

Probe for support of 8, 16 bit and if the large data extension is available
also probe for 64, 128 and 256 bit operations.
Probe for the ability of packing 8 and 16 bit data
(formerly probed in mem_ap_init()). The probe is integrated to
mem_ap_read/write() routines and takes place just before the first memory
access of the specific size.

Add 64, 128 and 256 bit MEM-AP read/writes.

Introduce specific error codes for unsupported transfer size
and for unsupported packing.

Change-Id: I180c4ef17d2fc3189e8e2f14bafd22d857f29608
Link: 7191: target/adiv5: add MEM-AP 64-bit access support | https://review.openocd.org/c/openocd/+/7191
Link: 7436: arm_adi_v5: Support reads wider than 32 bits | https://review.openocd.org/c/openocd/+/7436
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/7576
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

src/target/target.h

@@ -796,6 +796,8 @@ int target_profiling_default(struct target *target, uint32_t *samples, uint32_t
 #define ERROR_TARGET_NOT_EXAMINED (-311)
 #define ERROR_TARGET_DUPLICATE_BREAKPOINT (-312)
 #define ERROR_TARGET_ALGO_EXIT  (-313)
+#define ERROR_TARGET_SIZE_NOT_SUPPORTED  (-314)
+#define ERROR_TARGET_PACKING_NOT_SUPPORTED  (-315)
 
 extern bool get_target_reset_nag(void);