ARM: ux500: Fix intcore regulator name

Ux500 regulator name for V-INTCORE is misspelled as vinitcore instead of
vintcore in some .dts file, causing the AB8500 regulator driver to not
bind properly.  Fix this by replacing all occurrences with the right
name.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>