dt-bindings: i2c: i2c-mux: Remove reset-active-low from ssd1307fb examples

The "reset-active-low" property was removed from the ssd1307fb bindings
in commit 519b4dba ("fbdev: ssd1307fb: Remove reset-active-low
from the DT binding document") and from the ssd1307fb binding examples
in commit 7d7e58d3 ("dt-bindings: display: ssd1307fb: Remove
reset-active-low from examples").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>