Reformat makefile

kernel/Makefile

@@ -112,6 +112,7 @@ qemu_opts += \
 			-device ahci,id=ahci0 \
 			-device ide-drive,drive=sfsimg,bus=ahci0.0
 	endif
+
 	ifeq ($(pci_passthru), )
 		qemu_net_opts += \
 			-netdev type=tap,id=net0,script=no,downscript=no \
@@ -124,6 +125,7 @@ qemu_net_opts += \
 		qemu_ui_opts += \
 			-vga std
 	endif
+
 	ifeq ($(extra_nic), on)
 		qemu_net_opts += \
 			-netdev type=tap,id=net1,script=no,downscript=no \
@@ -161,13 +163,13 @@ qemu_opts += \
 			-drive file=$(SFSIMG),format=qcow2,id=sfs \
 			-device virtio-blk-device,drive=sfs
 	endif
+
 	qemu_net_opts += \
 		-netdev type=tap,id=net0,script=no,downscript=no \
 		-device virtio-net-device,netdev=net0
 	qemu_ui_opts += \
 		-device virtio-gpu-device \
 		-device virtio-mouse-device
-
 else ifeq ($(arch), aarch64)
 	qemu_opts += \
 		-machine $(board) \
@@ -177,7 +179,6 @@ ifneq ($(u_boot), )
 		qemu_opts += \
 			-sd $(bootloader)
 	endif
-
 else ifeq ($(arch), mipsel)
 	ifeq ($(board), malta)
 		qemu_opts += \