Simplify 5ba6531956b9b6486560cbd13604c2238a3542dd

Thanks to Juan Quintela.

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

Makefile.target

diff --git a/Makefile.target b/Makefile.target
index 1e91cf2..1d805b3 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -94,9 +94,7 @@
 
 obj-$(TARGET_I386) += vm86.o
 
-ifeq ($(TARGET_BASE_ARCH), i386)
-obj-y += ioport-user.o
-endif
+obj-i386-y += ioport-user.o
 
 nwfpe-obj-y = fpa11.o fpa11_cpdo.o fpa11_cpdt.o fpa11_cprt.o fpopcode.o
 nwfpe-obj-y += single_cpdo.o double_cpdo.o extended_cpdo.o
@@ -124,9 +122,7 @@
 obj-y = main.o commpage.o machload.o mmap.o signal.o syscall.o thunk.o \
         gdbstub.o gdbstub-xml.o
 
-ifeq ($(TARGET_BASE_ARCH), i386)
-obj-y += ioport-user.o
-endif
+obj-i386-y += ioport-user.o
 
 ARLIBS=libqemu.a
 
@@ -143,9 +139,7 @@
 obj-y = main.o bsdload.o elfload.o mmap.o signal.o strace.o syscall.o \
         gdbstub.o gdbstub-xml.o uaccess.o
 
-ifeq ($(TARGET_BASE_ARCH), i386)
-obj-y += ioport-user.o
-endif
+obj-i386-y += ioport-user.o
 
 ARLIBS=libqemu.a ../libqemu_user.a