soc/intel/common: use nvs.h include for nhlt code

The nvs.h header is the one which defines global_nvs_t proper.
Don't rely on an indirect inclusion.

Change-Id: I89d6a73f65e408c73f068b4a35b5efd361a6e5d3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15503
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)

src/soc/intel/common/nhlt.c

@@ -15,7 +15,7 @@
 
 #include <cbmem.h>
 #include <nhlt.h>
-#include <soc/acpi.h>
+#include <soc/nvs.h>
 
 uintptr_t nhlt_soc_serialize(struct nhlt *nhlt, uintptr_t acpi_addr)
 {