SF: Update capabilities for HWC virtual display

setPowerMode() is not called in HWC virtual display
so capabilities was not updated.
This change updates capabilities when HWC virtual display is created.

Bug: 329533475
Test: manual
Change-Id: Ib12a5e76cd9b1efb0dd14a6ad31983e41a0eeaba
Signed-off-by: HyunKyoung <hk310.kim@samsung.com>