Merge tag 'stm32-defconfig-for-v4.17-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into next/soc

Pull "STM32 defconfig updates for v4.17, round 1" from Alexandre Torgue:

Highlights:
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 -Add STM32 support (for MPU) to multi-v7-defconfig
 -Enable MMCI and EXT3_FS support