remoteproc: fix FW_CONFIG typo

Fix obvious typo introduced in commit e121aefa
("remoteproc: fix missing CONFIG_FW_LOADER configurations").

Cc: stable@vger.kernel.org
Signed-off-by: Robert Tivy <rtivy@ti.com>
[cc stable, slight subject change]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>

drivers/remoteproc/Kconfig

@@ -4,7 +4,7 @@ menu "Remoteproc drivers"
 config REMOTEPROC
 	tristate
 	depends on HAS_DMA
-	select FW_CONFIG
+	select FW_LOADER
 	select VIRTIO
 
 config OMAP_REMOTEPROC