dm: Remove header vmm.h

vmm.h has some unused definitions.

Keep the useful definitions and delete vmm.h

Tracked-On: #6282
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>

devicemodel/include/pm.h

@@ -10,6 +10,18 @@
 #define	PWR_EVENT_NOTIFY_UART			0x3
 #define	PWR_EVENT_NOTIFY_UART_TRIG_PLAT_S5	0x4
 
+enum vm_suspend_how {
+	VM_SUSPEND_NONE = 0,
+	VM_SUSPEND_SYSTEM_RESET,
+	VM_SUSPEND_FULL_RESET,
+	VM_SUSPEND_POWEROFF,
+	VM_SUSPEND_SUSPEND,
+	VM_SUSPEND_HALT,
+	VM_SUSPEND_TRIPLEFAULT,
+	VM_SUSPEND_LAST
+};
+
+struct vmctx;
 int wait_for_resume(struct vmctx *ctx);
 int vm_resume(struct vmctx *ctx);
 int vm_monitor_resume(void *arg);