Fix breakage of alpha, mips64, ppc64 and x86_64 targets on non-amd64 host

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Makefile

@@ -73,7 +73,7 @@ block-obj-y +=  $(addprefix block/, $(block-nested-y))
 # CPUs and machines.
 
 obj-y = $(block-obj-y)
-obj-y += readline.o console.o
+obj-y += readline.o console.o host-utils.o
 
 obj-y += irq.o ptimer.o
 obj-y += i2c.o smbus.o smbus_eeprom.o max7310.o max111x.o wm8750.o