target: use unsigned int for timeout_ms

Change the prototype of functions:
- target_run_algorithm()
- target_wait_algorithm()
- target_wait_state()
- struct target_type::run_algorithm()
- struct target_type::wait_algorithm()
to use unsigned int for timeout_ms instead of int.
Change accordingly the variables passed as parameter.

Change-Id: I0b8d6e691bb3c749eeb2911dc5a86c38cc0cb65d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7562
Tested-by: jenkins

src/target/mips32.h

@@ -400,7 +400,7 @@ int mips32_run_algorithm(struct target *target,
 		int num_mem_params, struct mem_param *mem_params,
 		int num_reg_params, struct reg_param *reg_params,
 		target_addr_t entry_point, target_addr_t exit_point,
-		int timeout_ms, void *arch_info);
+		unsigned int timeout_ms, void *arch_info);
 
 int mips32_configure_break_unit(struct target *target);