char: fix alias devices regression

Fix regression from commit 4d43a603, where the serial and parallel
headers got removed from char.c, which broke the alias table.

Move the HAVE_CHARDEV_SERIAL/HAVE_CHARDEV_PARPORT to osdep.h instead
of being in separate headers.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

include/chardev/char-parallel.h

@@ -26,11 +26,6 @@
 
 #include "chardev/char.h"
 
-#if defined(__linux__) || defined(__FreeBSD__) ||               \
-    defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-#define HAVE_CHARDEV_PARPORT 1
-#endif
-
 #define CHR_IOCTL_PP_READ_DATA        3
 #define CHR_IOCTL_PP_WRITE_DATA       4
 #define CHR_IOCTL_PP_READ_CONTROL     5

include/chardev/char-serial.h

@@ -26,14 +26,6 @@
 
 #include "chardev/char.h"
 
-#ifdef _WIN32
-#define HAVE_CHARDEV_SERIAL 1
-#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__)    \
-    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
-    || defined(__GLIBC__)
-#define HAVE_CHARDEV_SERIAL 1
-#endif
-
 #define CHR_IOCTL_SERIAL_SET_PARAMS   1
 typedef struct {
     int speed;

include/qemu/osdep.h

@@ -284,6 +284,19 @@ void qemu_anon_ram_free(void *ptr, size_t size);
 
 #endif
 
+#ifdef _WIN32
+#define HAVE_CHARDEV_SERIAL 1
+#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__)    \
+    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
+    || defined(__GLIBC__)
+#define HAVE_CHARDEV_SERIAL 1
+#endif
+
+#if defined(__linux__) || defined(__FreeBSD__) ||               \
+    defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+#define HAVE_CHARDEV_PARPORT 1
+#endif
+
 #if defined(CONFIG_LINUX)
 #ifndef BUS_MCEERR_AR
 #define BUS_MCEERR_AR 4