pinctrl: Increase size of pinmux status buffer

pinctrl: Increase size of pinmux status buffer

For Xilinx ZynqMP SOC new parameter was added and now it can
set 7 parameters for its pins. Pinmux status command will
print the status of these parameters for each pin. But
current print buffer length is only 80 characters long, increase it
to 90 to print all the parameters without truncation.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20230920030006.6488-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>