ARM: dts: imx6qdl: Remove leading zeroes from unit addresses

The following build warnings are seen with W=1:

Warning (simple_bus_reg): Node /soc/sram@00900000 simple-bus unit
address format error, expected "900000"
Warning (simple_bus_reg): Node /soc/aips-bus@02000000 simple-bus unit
address format error, expected "2000000"
Warning (simple_bus_reg): Node /soc/aips-bus@02000000/pxp@020f0000
simple-bus unit address format error, expected "20f0000"
(...)

Remove the leading zeroes from unit addresses to fix the warnings.

Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>