compiler: add __ARM_ARCH, __ARM_FEATURE_DSP macro definition in ghs

when we build mbedtls in vela with ghs compiler, the mbedtls need to
access __ARM_ARCH and __ARM_FEATURE_DSP, and to construct the inline asm
code based on these two macros.
With ghs compiler, these two macros are not defined, and will be
evaluated as 0 by default, and thus will using to wrong inline asm code,
in order to handle this issue, we need to add conversion between the ghs
and gcc with __ARM_ARCH, __ARM_FEATURE_DSP

Signed-off-by: guoshichao <guoshichao@xiaomi.com>

arch/arm/include/armv6-m/irq.h

@@ -43,6 +43,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 6
+#endif
+
 /* Configuration ************************************************************/
 
 /* If this is a kernel build,

arch/arm/include/armv7-a/irq.h

@@ -42,6 +42,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 7
+#endif
+
 /* IRQ Stack Frame Format:
  *
  * Context is always saved/restored in the same way:

arch/arm/include/armv7-m/irq.h

@@ -42,6 +42,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 7
+#endif
+
 /* Configuration ************************************************************/
 
 /* If this is a kernel build, how many nested system calls should we

arch/arm/include/armv7-r/irq.h

@@ -42,6 +42,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 7
+#endif
+
 /* IRQ Stack Frame Format:
  *
  * Context is always saved/restored in the same way:

arch/arm/include/armv8-m/irq.h

@@ -42,6 +42,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 8
+#endif
+
 /* Configuration ************************************************************/
 
 /* If this is a kernel build, how many nested system calls should we

arch/arm/include/armv8-r/irq.h

@@ -42,6 +42,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 8
+#endif
+
 /* IRQ Stack Frame Format:
  *
  * Context is always saved/restored in the same way:

arch/arm/include/irq.h

@@ -75,6 +75,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#if defined(__ghs__) && defined(__ARM_DSP__)
+#  define __ARM_FEATURE_DSP 1
+#endif
+
 #ifndef __ASSEMBLY__
 
 #ifndef up_switch_context

arch/arm64/include/irq.h

@@ -49,6 +49,10 @@
  * Pre-processor Prototypes
  ****************************************************************************/
 
+#ifdef __ghs__
+#  define __ARM_ARCH 8
+#endif
+
 #define up_getsp()          (uintptr_t)__builtin_frame_address(0)
 
 /* MPIDR_EL1, Multiprocessor Affinity Register */