jtag: move declaration outside function

The function jtag_debug_state_machine_() is only used by a static
inline function and declared inside it as private.
The static analyser 'sparse' complains that the function is
defined as global but not cross checked against a prototype in an
include file.

Move the declaration outside the inline function so it get visible
by interface.c, which already includes interface.h
While there, change the argument type from 'unsigned' to 'unsigned
int' to pass checkpatch check.

Change-Id: Ia5dfb92dc4bc6d52ead4f0cb8c68319c83ff85b0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7672
Tested-by: jenkins

src/jtag/interface.c

@@ -372,7 +372,7 @@ tap_state_t tap_state_by_name(const char *name)
 	tap_state_name(a), tap_state_name(b), astr, bstr)
 
 tap_state_t jtag_debug_state_machine_(const void *tms_buf, const void *tdi_buf,
-	unsigned tap_bits, tap_state_t next_state)
+	unsigned int tap_bits, tap_state_t next_state)
 {
 	const uint8_t *tms_buffer;
 	const uint8_t *tdi_buffer;