dm: don't present ioapic and pic to RT VM

Per ACRN RT VM design, there is no virtual IOAPIC and virtual PIC emulated for RT VM.
This commit removes the entries of IOAPIC, PIC, PPRT and APRT in ACPI table for RT VM.

Tracked-On: #3227
Signed-off-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

devicemodel/core/main.c

@@ -915,7 +915,6 @@ main(int argc, char *argv[])
 			break;
 		case CMD_OPT_LAPIC_PT:
 			lapic_pt = true;
-			break;
 		case CMD_OPT_RTVM:
 			is_rtvm = true;
 			break;