arm/build: suppress LOAD RWX linker warning

Add --no-warn-rwx-segments in case of RAM boot mode to linker to
suppress the below warning:
"nuttx has a LOAD segment with RWX permissions"

Signed-off-by: Jinliang Li <lijinliang1@lixiang.com>

arch/arm/src/cmake/gcc.cmake

@@ -66,7 +66,7 @@ if(CONFIG_ARCH_TOOLCHAIN_GNU)
 
   if(GCCVER GREATER_EQUAL 12)
     add_compile_options(--param=min-pagesize=0)
-    if(CONFIG_ARCH_RAMFUNCS)
+    if(CONFIG_ARCH_RAMFUNCS OR NOT CONFIG_BOOT_RUNFROMFLASH)
       add_link_options(-Wl,--no-warn-rwx-segments)
     endif()
   endif()

arch/arm/src/common/Toolchain.defs

@@ -317,6 +317,8 @@ else
       ARCHOPTIMIZATION += --param=min-pagesize=0
       ifeq ($(CONFIG_ARCH_RAMFUNCS),y)
         LDFLAGS += --no-warn-rwx-segments
+      else ifeq ($(CONFIG_BOOT_RUNFROMFLASH),)
+        LDFLAGS += --no-warn-rwx-segments
       endif
     endif
   endif