mb/facebook/fbg1701: Add logo to the menu

Allow the user to enable and disable the logo from
make menuconfig. The file can be selected as well.

BUG=N/A
TEST=build

Change-Id: I630a9d14308131c180adaaa9e1fa5e6e11c3c61c
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>

src/mainboard/facebook/fbg1701/Kconfig

@@ -69,9 +69,14 @@ config FSP_LOC
 	default 0xfff9c000
 
 config FSP1_1_DISPLAY_LOGO
-	bool
+	bool "Enable logo"
 	default n
 
+config FSP1_1_LOGO_FILE_NAME
+	string "Logo file"
+	depends on FSP1_1_DISPLAY_LOGO
+	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/logo.bmp"
+
 config VENDORCODE_ELTAN_OEM_MANIFEST_LOC
 	hex
 	default 0xFFFE9000