Merge tag 'mmc-10-10-2019' of https://gitlab.denx.de/u-boot/custodians/u-boot-mmc

- Add sdhci driver for Broadcom iProc platform
- Add a driver callback for power-cycle for mmc
- Implement host_power_cycle callback for stm32_sdmmc2
- spl: dm_mmc: Initialize only the required mmc device

arch/arm/include/asm/iproc-common/iproc_sdhci.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: <SPDX License Expression> */
+/*
+ * Copyright 2019 Broadcom
+ *
+ */
+
+#ifndef __IPROC_SDHCI_H
+#define __IPROC_SDHCI_H
+
+int iproc_sdhci_init(int dev_index, u32 quirks);
+
+#endif