linux-phytec-ti

dts-bindings: leds: Document the naming requirement for LED properties

LED properties must be named "leds" in the same way that PWM, clocks or
PHY properties are names respectively "pwms", "clocks" and "phys".

Cc: devicetree@vger.kernel.org
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>