restructure machine based upon new naming convention

machine/SIRIVISION_SR_S25G2109F.h

@@ -0,0 +1,10 @@
+#ifndef _MACHINE_SIRIVISION_SR_S25G2109F_H_
+#define _MACHINE_SIRIVISION_SR_S25G2109F_H_
+
+/* machine_name[] in struct machine is 30 bytes -> keep this <= 29 chars */
+/* The product is sold as SR-S25G2109F; S25G1109FP is the PCB silkscreen and
+ * belongs to a different (unmanaged PoE) model that shares this PCB. */
+#define MACHINE_MODEL "Sirivision SR-S25G2109F"
+#define MACHINE_CHIPSET RTL8373
+
+#endif