Doc: gpio: Fix typos in Documentation/gpio

This patch fix some spelling typos found in Documentation/gpio.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt
index e000502..05676fd 100644
--- a/Documentation/gpio/consumer.txt
+++ b/Documentation/gpio/consumer.txt
@@ -260,7 +260,7 @@
 
 To summarize:
 
-Function (example)               active-low proporty  physical line
+Function (example)               active-low property  physical line
 gpiod_set_raw_value(desc, 0);        don't care           low
 gpiod_set_raw_value(desc, 1);        don't care           high
 gpiod_set_value(desc, 0);       default (active-high)     low