armv7m: Integrate build of erase check code

Instead of documenting the file path as a comment and inline-commenting
the THUMB bytecode, include the hex array via preprocessor.

This assures the path is actually up-to-date and facilitates updating
the code.

Change-Id: Ieb0a7cd0bc14882ac96750f524616d9768a0c6f5
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3134
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

src/target/armv7m.c

@@ -769,16 +769,8 @@ int armv7m_blank_check_memory(struct target *target,
 	struct armv7m_algorithm armv7m_info;
 	int retval;
 
-	/* see contrib/loaders/erase_check/armv7m_erase_check.s for src */
-
 	static const uint8_t erase_check_code[] = {
-		/* loop: */
-		0x03, 0x78,		/* ldrb	r3, [r0] */
-		0x01, 0x30,		/* adds	r0, #1 */
-		0x1A, 0x40,		/* ands	r2, r2, r3 */
-		0x01, 0x39,		/* subs	r1, r1, #1 */
-		0xFA, 0xD1,		/* bne	loop */
-		0x00, 0xBE		/* bkpt	#0 */
+#include "../../contrib/loaders/erase_check/armv7m_erase_check.inc"
 	};
 
 	/* make sure we have a working area */