zink: Fix incorrect assert checking for linear state format
Came across this while running NineTest with a debug build, nine+zink+turnip. In my case pres->format == PIPE_FORMAT_L8_UNORM
and state->format == PIPE_FORMAT_L8_SRGB
.
With pres->format == PIPE_FORMAT_L8_UNORM
and
state->format == PIPE_FORMAT_L8_SRGB
the assert is triggered.
We should be comparing the linear version of state->format
since
we're only concerned about the physical memory layout here.