dt-bindings: connector: Spelling mistake

Cosmetic change multpile -> multiple.

Fixes: 593aa2b405f9 ("dt-bindings: add bindings for USB physical connector")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
1 file changed