device/resource: Add _kb postfix for resource allocators

There is a lot of going back-and-forth with the KiB arguments, start
the work to migrate away from this.

Change-Id: I329864d36137e9a99b5640f4f504c45a02060a40
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64658
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/emulation/qemu-armv7/mainboard.c b/src/mainboard/emulation/qemu-armv7/mainboard.c
index 439f243..4111caa 100644
--- a/src/mainboard/emulation/qemu-armv7/mainboard.c
+++ b/src/mainboard/emulation/qemu-armv7/mainboard.c
@@ -39,7 +39,7 @@
 
 	discovered = probe_ramsize((uintptr_t)_dram, CONFIG_DRAM_SIZE_MB);
 	printk(BIOS_DEBUG, "%d MiB of RAM discovered\n", discovered);
-	ram_resource(dev, 0, 0x60000000 >> 10, discovered << 10);
+	ram_resource_kb(dev, 0, 0x60000000 >> 10, discovered << 10);
 	init_gfx();
 }