feat(intel): add SMPLSEL and DRVSEL setup for Stratix 10 MMC

SMPLSEL and DRVSEL values need to updated in
DWMMC for the IP to work correctly. This apply
on Stratix 10 device only.

Signed-off-by: Loh Tien Hock <tien.hock.loh@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: Ibd799a65890690682e27e4cbbc85e83ea03d51fc
diff --git a/plat/intel/soc/stratix10/include/s10_mmc.h b/plat/intel/soc/stratix10/include/s10_mmc.h
new file mode 100644
index 0000000..99f86f5
--- /dev/null
+++ b/plat/intel/soc/stratix10/include/s10_mmc.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2022, Intel Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __S10_MMC_H__
+#define __S10_MMC_H__
+
+void s10_mmc_init(void);
+
+#endif /* S10_MMC_H */