dt-bindings: trivial-devices: fix swapped comments

sparkfun,qwiic-joystick and st,24c256 had their comments incorrectly
swapped. Swap them to make them correct.

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/7dc6ddb0b042cd243b2875e9aea81cad541d1c6b.1642080090.git.stano.jakubek@gmail.com