libs/ui/DebugUtils.cpp typo fix

Fix a typo in this debug utility. Replace HAL_DATASPACE_V0_BT709 with
HAL_DATASPACE_BT709 at a couple places. Also remove an extra ')'.

Test: dumpsys SurfaceFlinger should print correct message for BT709.
Bug: b/74087087
Change-Id: I1b8f28a550fd6de1d4047ad5d717cfebc32a5408
1 file changed