arm_tpiu_swo: add support for independent TPIU and SWO

This is supposed to replace big part of armv7m_trace.[ch], since
TPIU is not only the one implemented in Cortex-M3 and M4.

Change-Id: I7588d16cbefe9cdb371c52fb0aa5cdfb48518804
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5858
Tested-by: jenkins

src/target/Makefile.am

@@ -113,6 +113,7 @@ ARM_DEBUG_SRC = \
 	%D%/etm.c \
 	$(OOCD_TRACE_FILES) \
 	%D%/etm_dummy.c \
+	%D%/arm_tpiu_swo.c \
 	%D%/arm_cti.c
 
 AVR32_SRC = \
@@ -214,6 +215,7 @@ ARC_SRC = \
 	%D%/etb.h \
 	%D%/etm.h \
 	%D%/etm_dummy.h \
+	%D%/arm_tpiu_swo.h \
 	%D%/image.h \
 	%D%/mips32.h \
 	%D%/mips64.h \