ASoC: amd: acp: Fix -Wmissing-prototypes warning

Fix prototype missing warning for acp3x_es83xx_init_ops() by
including the header acp3x-es83xx.h
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309111220.g63yHDfH-lkp@intel.com/Signed-off-by: Marian Postevca <posteuca@mutex.one>
Link: https://lore.kernel.org/r/20230913210916.2523-1-posteuca@mutex.oneSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp/acp3x-es83xx/acp3x-es83xx.c

@@ -20,6 +20,7 @@
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 #include "../acp-mach.h"
+#include "acp3x-es83xx.h"
 
 #define get_mach_priv(card) ((struct acp3x_es83xx_private *)((acp_get_drvdata(card))->mach_priv))