Revert "Get rid of _t suffix"

In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/tc58128.c b/hw/tc58128.c
index 92adca4..264aa02 100644
--- a/hw/tc58128.c
+++ b/hw/tc58128.c
@@ -13,11 +13,11 @@
 #define RDY2 0x8000
 #define RDY(n) ((n) == 0 ? RDY1 : RDY2)
 
-typedef enum { WAIT, READ1, READ2, READ3 } e_state;
+typedef enum { WAIT, READ1, READ2, READ3 } state_t;
 
 typedef struct {
     uint8_t *flash_contents;
-    e_state state;
+    state_t state;
     uint32_t address;
     uint8_t address_cycle;
 } tc58128_dev;