amd/stoneyridge: Skip VGA initialization on S3 resume

Sync with the other AMD implementations.

Change-Id: I222cc7fcf5e58f451cee9621a1b876346226af09
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22718
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/amd/stoneyridge/Kconfig

@@ -135,6 +135,10 @@ config VGA_BIOS_FILE
 	string
 	default "3rdparty/blobs/northbridge/amd/00670F00/VBIOS.bin"
 
+config S3_VGA_ROM_RUN
+	bool
+	default n
+
 config RAMTOP
 	hex
 	default 0x1000000