vk/cmd_buffer: Invalidate texture cache in emit_state_base_address

vk/cmd_buffer: Invalidate texture cache in emit_state_base_address

Previously, the caller of emit_state_base_address was doing this.  However,
putting it directly in emit_state_base_address means that we'll never
forget the flush at the cost of one PIPE_CONTROL at the top every batch
(that should do nothing since the kernel just flushed for us).