mb/google/kahlee: Add register address mapping for FCH MISC

Audio machine driver will enable/disable clock by making it as
a CCF clock in kernel.

BUG=b:74570989
TEST=cherry-picked https://patchwork.kernel.org/patch/10291875/
on 4.14 kernel
aplay -vv <file>
check register to see clock enabled
kill aplay
check register to see clock disabled

Change-Id: Ia553e55ffb358415067000d2d2d2744322d1c4db
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-on: https://review.coreboot.org/25263
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/google/kahlee/variants/baseboard/include/baseboard/acpi/audio.asl

@@ -12,7 +12,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
-
+#include <soc/iomap.h>
 
 /* Grunt specific I2S machine driver */
 Device (I2S)
@@ -20,4 +20,14 @@ Device (I2S)
 	Name (_ADR, 1)
 	Name (_HID, "AMD7219")
 	Name (_CID, "AMD7219")
+
+	Method (_CRS, 0x0, NotSerialized) {
+		Name (RBUF, ResourceTemplate () {
+			// Memory resource is for MISC FCH register set.
+			// It is needed for enabling the clock.
+			Memory32Fixed(ReadWrite, MISC_MMIO_BASE, 0x100)
+		})
+
+		Return (RBUF)
+	}
 }