hv: rework EOI_EXIT_BITMAP update logic

This commit changes the EOI_EXIT_BITMAP as follows:
- add a eoi_exit_bitmap to vlapic structure;
- go through all the RTEs and set eoi_exit_bitmap in the vlapic structure when related RTE fields are modified;
- add ACRN_REQUEST_EOI_EXIT_UPDATE, if eoi_exit_bitmap changed, request the corresponding vcpu to write the bitmap
  to VMCS.

Tracked-On: #2343
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/arch/x86/guest/guest.h

@@ -39,6 +39,7 @@
 #define ACRN_REQUEST_EPT_FLUSH      5U
 #define ACRN_REQUEST_TRP_FAULT      6U
 #define ACRN_REQUEST_VPID_FLUSH    7U /* flush vpid tlb */
+#define ACRN_REQUEST_EOI_EXIT_UPDATE  8U
 
 #define E820_MAX_ENTRIES    32U