ARM: imx/iomux-v3: allow pad_list to be const

Also fix all machine files to make use of it and while at it also make
the pad lists __initconst.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --cc arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
Simple merge

diff --cc arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
Simple merge

diff --cc arch/arm/mach-imx/iomux-v3.c
Simple merge

diff --cc arch/arm/mach-imx/iomux-v3.h
Simple merge

diff --cc arch/arm/mach-imx/mach-cpuimx35.c
Simple merge

diff --cc arch/arm/mach-imx/mach-eukrea_cpuimx25.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx25_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-mx35_3ds.c
Simple merge

diff --cc arch/arm/mach-imx/mach-pcm043.c
Simple merge

diff --cc arch/arm/mach-imx/mach-vpr200.c
Simple merge