Include qemu-common.h exactly where needed

No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
diff --git a/tests/e1000e-test.c b/tests/e1000e-test.c
index 781fcbf..445787a 100644
--- a/tests/e1000e-test.c
+++ b/tests/e1000e-test.c
@@ -25,6 +25,7 @@
 
 
 #include "qemu/osdep.h"
+#include "qemu-common.h"
 #include "libqtest.h"
 #include "qemu-common.h"
 #include "libqos/pci-pc.h"