Merge tag 'u-boot-stm32-20210618' of https://source.denx.de/u-boot/custodians/u-boot-stm into next

 - stm32mp157c-odyssey-som DT fixes
 - stm32_qspi: Fix short data write operation
 - dfu: set max_buf_size to erasesize also for NOR devices
 - Fixes ethernet clock property name for STM32MP1 board
 - STM32CubeProgrammer: various fixes
 - clk: cosmetic update for clk-uclass