jtag: cut down on usage of unintended modification of global end state

jtag_get/set_end_state() is now deprecated.

There were lots of places in the code where the end state was
unintentionally modified.

The big Q is whether there were any places where the intention
was to modify the end state. 0.5 is a long way off, so we'll
get a fair amount of testing.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/target/arm7_9_common.c

@@ -1750,7 +1750,7 @@ int arm7_9_restart_core(struct target *target)
 	}
 	arm_jtag_set_instr(jtag_info, 0x4, NULL);
 
-	jtag_add_runtest(1, jtag_set_end_state(TAP_IDLE));
+	jtag_add_runtest(1, TAP_IDLE);
 	return jtag_execute_queue();
 }