Kconfig backport #18259 & remove contrained flash depedency on NO_HELP

Kconfig

@@ -78,15 +78,11 @@ menu "Toolchain"
         help
             flag to enable constrained flash options (eg limit init script status text)
 
-    if BOARD_CONSTRAINED_FLASH
+    config BOARD_NO_HELP
-
-        config BOARD_NO_HELP
         bool "No help"
         help
             optional condition flag to disable help text on constrained flash systems
 
-    endif #BOARD_CONSTRAINED_FLASH
-
     config BOARD_CONSTRAINED_MEMORY
         bool "Contrained memory"
         help

boards/ark/can-gps/debug.px4board

@@ -1,3 +1,4 @@
+CONFIG_BOARD_NO_HELP=y
 CONFIG_SYSTEMCMDS_REBOOT=y
 CONFIG_SYSTEMCMDS_TOP=y
 CONFIG_SYSTEMCMDS_TOPIC_LISTENER=y

cmake/kconfig.cmake

@@ -273,9 +273,10 @@ if(EXISTS ${BOARD_DEFCONFIG})
 	if(CONSTRAINED_FLASH)
 		set(px4_constrained_flash_build "1" CACHE INTERNAL "constrained flash build" FORCE)
 		add_definitions(-DCONSTRAINED_FLASH)
-		if (NO_HELP)
+	endif()
-			add_definitions(-DCONSTRAINED_FLASH_NO_HELP="https://docs.px4.io/master/en/modules/modules_main.html")
+
-		endif()
+    if (NO_HELP)
+		add_definitions(-DCONSTRAINED_FLASH_NO_HELP="https://docs.px4.io/master/en/modules/modules_main.html")
 	endif()
 
 	if(CONSTRAINED_MEMORY)