hwc2: Do not throw error on unspecified dataspace attribute

A legacy or non-WCG App may keep the Standard, Transfer or Range
attribute of data-space as UNSPECIFIED, which is the default value.
Do not throw error in such cases. HWC is marking such layer as SKIP.

CRs-Fixed: 2239912
Change-Id: I7b508f0dc4e569936ce097e8ff32032e28f365c0
1 file changed