ssd0323: abort() instead of exit(1) on error.

To be more consistent with the newer ways of error signalling. That and SIGABT
is easier to debug with than exit(1).

Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/ssd0323.c

@@ -19,7 +19,9 @@
 #define DPRINTF(fmt, ...) \
 do { printf("ssd0323: " fmt , ## __VA_ARGS__); } while (0)
 #define BADF(fmt, ...) \
-do { fprintf(stderr, "ssd0323: error: " fmt , ## __VA_ARGS__); exit(1);} while (0)
+do { \
+    fprintf(stderr, "ssd0323: error: " fmt , ## __VA_ARGS__); abort(); \
+} while (0)
 #else
 #define DPRINTF(fmt, ...) do {} while(0)
 #define BADF(fmt, ...) \