dm: rename ssram source files

guest ssram will be virtualized based on tcc driver interface,
 instead of pass-thru native rtct, rename its source files to
 avoid confusing:

  - rename:
  rtct.c -> vssram.c
  rtct.h -> vssram.h

 - move rtct.c from platform/acpci/ to platform/
 - new directory 'vssram' to hold vssram source files.

Tracked-On: #7010
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Wang Yu1 <yu1.wang@intel.com>

devicemodel/Makefile

@@ -106,7 +106,7 @@ SRCS += hw/platform/ioc.c
 SRCS += hw/platform/ioc_cbc.c
 SRCS += hw/platform/pty_vuart.c
 SRCS += hw/platform/acpi/acpi.c
-SRCS += hw/platform/acpi/rtct.c
+SRCS += hw/platform/vssram/vssram.c
 SRCS += hw/platform/acpi/acpi_pm.c
 SRCS += hw/platform/rpmb/rpmb_sim.c
 SRCS += hw/platform/rpmb/rpmb_backend.c

devicemodel/core/sw_load_common.c

@@ -34,7 +34,7 @@
 #include "sw_load.h"
 #include "dm.h"
 #include "pci_core.h"
-#include "rtct.h"
+#include "vssram.h"
 
 int with_bootargs;
 static char bootargs[BOOT_ARG_LEN];

devicemodel/hw/platform/acpi/acpi.c

@@ -71,7 +71,7 @@
 #include "vmmapi.h"
 #include "hpet.h"
 #include "log.h"
-#include "rtct.h"
+#include "vssram.h"
 #include "vmmapi.h"
 #include "mmio_dev.h"
 

devicemodel/hw/platform/vssram/vssram.c

@@ -21,7 +21,7 @@
 #include "vmmapi.h"
 #include "acpi.h"
 #include "log.h"
-#include "rtct.h"
+#include "vssram.h"
 
 #define RTCT_V1 1
 #define RTCT_V2 2