Implemented the National Semiconductors PC87307, PC87309, PC87332, and PC97307 Super I/O chips, fixed a number of bugs, and removed two machines from the Dev branch due to them now having the correct Super I/O chips.

src/machine/m_at_socket7_s7.c

@@ -813,6 +813,7 @@ machine_at_ym430tx_init(const machine_t *model)
     return ret;
 }
 
+
 int
 machine_at_mb540n_init(const machine_t *model)
 {
@@ -843,6 +844,7 @@ machine_at_mb540n_init(const machine_t *model)
     return ret;
 }
 
+
 int
 machine_at_p5mms98_init(const machine_t *model)
 {
@@ -908,6 +910,7 @@ machine_at_p5mms98_init(const machine_t *model)
     return ret;
 }
 
+
 int
 machine_at_ficva502_init(const machine_t *model)
 {
@@ -937,6 +940,7 @@ machine_at_ficva502_init(const machine_t *model)
     return ret;
 }
 
+
 int
 machine_at_ficpa2012_init(const machine_t *model)
 {