Merge branch 'mmp/fixes' into arm/fixes

These three fixes should make it into linux-5.7 and
also into the branch for other mmp dt changes for v5.8,
so I created a branch for them.

* mmp/fixes:
  ARM: dts: mmp3: Drop usb-nop-xceiv from HSIC phy
  ARM: dts: mmp3-dell-ariel: Fix the SPI devices
  ARM: dts: mmp3: Use the MMP3 compatible string for /clocks

Signed-off-by: Arnd Bergmann <arnd@arndb.de>