Move structure from termios.c to win32_termios.h

https://github.com/Hamlib/Hamlib/issues/1123

lib/termios.c

@@ -65,28 +65,7 @@ int my_errno;
 #if 0
 extern int errno;
 #endif
-struct termios_list
-{
-    char filename[512];
-    int my_errno;
-    int interrupt;
-    int event_flag;
-    int tx_happened;
-    unsigned long *hComm;
-    struct termios *ttyset;
-    struct serial_struct *sstruct;
-    /* for DTR DSR */
-    unsigned char MSR;
-    struct async_struct *astruct;
-    struct serial_icounter_struct *sis;
-    int open_flags;
-    OVERLAPPED rol;
-    OVERLAPPED wol;
-    OVERLAPPED sol;
-    int fd;
-    struct termios_list *next;
-    struct termios_list *prev;
-};
+
 struct termios_list *first_tl = NULL;
 
 static struct termios_list *find_port(int);

lib/win32termios.h

@@ -119,6 +119,29 @@ struct serial_icounter_struct {
 	int reserved[9]; 	/* unused */
 };
 
+struct termios_list
+{
+    char filename[512];
+    int my_errno;
+    int interrupt;
+    int event_flag;
+    int tx_happened;
+    unsigned long *hComm;
+    struct termios *ttyset;
+    struct serial_struct *sstruct;
+    /* for DTR DSR */
+    unsigned char MSR;
+    struct async_struct *astruct;
+    struct serial_icounter_struct *sis;
+    int open_flags;
+    OVERLAPPED rol;
+    OVERLAPPED wol;
+    OVERLAPPED sol;
+    int fd;
+    struct termios_list *next;
+    struct termios_list *prev;
+};
+
 int win32_serial_test( char * );
 int win32_serial_open(const char *File, int flags, ... );
 int win32_serial_close(int fd);