arm64: dts: juno: fix few unit address format warnings

This patch fixes the following set of warnings on juno.

 smb@08000000 unit name should not have leading 0s
 sysctl@020000 simple-bus unit address format error, expected "20000"
 apbregs@010000 simple-bus unit address format error, expected "10000"
 mmci@050000 simple-bus unit address format error, expected "50000"
 kmi@060000 simple-bus unit address format error, expected "60000"
 kmi@070000 simple-bus unit address format error, expected "70000"
 wdt@0f0000 simple-bus unit address format error, expected "f0000"

Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>