drivers/intel/gma: Make libgfxinit available w/o gfxinit

We might want to make use of libgfxinit functions without using it for
actual graphics init.

Change-Id: I29c3b19989acb678d0d447e83d38bad9d584caa9
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31455
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/device/Kconfig

@@ -76,7 +76,6 @@ config MAINBOARD_USE_LIBGFXINIT
 	depends on MAINBOARD_HAS_LIBGFXINIT
 	select HAVE_VGA_TEXT_FRAMEBUFFER
 	select HAVE_LINEAR_FRAMEBUFFER
-	select RAMSTAGE_LIBHWBASE
 	select VGA if VGA_TEXT_FRAMEBUFFER
 	help
 	  Use the SPARK library `libgfxinit` for the native graphics