[nrf noup] linker.ld: Change ifdef from SECURE_BOOT to FW_METADATA

FW_METADATA is its own subsys now.
This improves user experience with B0 + MCUboot.

Signed-off-by: Øyvind Rønningstad <[email protected]>
(cherry picked from commit 04b29a7)
(cherry picked from commit c1f7495)
Signed-off-by: Martí Bolívar <[email protected]>

Author: oyvindronningstad

include/arch/arm/cortex_m/scripts/linker.ld

@@ -185,8 +185,8 @@ SECTIONS
 
 	_vector_end = .;
 	/* This is used for Secure Boot */
-	#if defined(CONFIG_SECURE_BOOT)
-	. = CONFIG_SB_FIRMWARE_INFO_OFFSET;
+	#if defined(CONFIG_FW_METADATA)
+	. = CONFIG_FW_FIRMWARE_INFO_OFFSET;
 	KEEP(*(.firmware_info))
 	#endif
 	} GROUP_LINK_IN(ROMABLE_REGION)