arm: Support hardware debug

	Support hardware debugging of ARM architecture, and support smp mode.We can use "up_debugpoint_add" or "up_debugpoint_remove" to add breakpoints, and the hardware will jump into the interrupt after detecting it.
	It will not affect our program. Registration callback is not supported yet，the debug of arm32 jumps into the exception vector table, and it is also necessary to develop the jump function of the exception vector table in debug mode

TODO:
Support singlestep

Signed-off-by: wangmingrong1 <[email protected]>

Author: W-M-R

arch/arm/src/armv7-a/CMakeLists.txt

@@ -37,6 +37,7 @@ list(
   arm_cache.c
   arm_cpuinfo.c
   arm_dataabort.c
+  arm_hwdebug.c
   arm_doirq.c
   arm_gicv2.c
   arm_gicv2_dump.c

arch/arm/src/armv7-a/Make.defs

@@ -43,7 +43,7 @@ CMN_ASRCS += arm_cpuhead.S arm_vectors.S arm_saveusercontext.S
 # Common C source files
 
 CMN_CSRCS += arm_cache.c arm_cpuinfo.c arm_dataabort.c
-CMN_CSRCS += arm_doirq.c arm_gicv2.c arm_gicv2_dump.c
+CMN_CSRCS += arm_hwdebug.c arm_doirq.c arm_gicv2.c arm_gicv2_dump.c
 CMN_CSRCS += arm_initialstate.c arm_mmu.c arm_prefetchabort.c
 CMN_CSRCS += arm_schedulesigaction.c arm_sigdeliver.c
 CMN_CSRCS += arm_syscall.c arm_tcbinfo.c arm_undefinedinsn.c