staging: greybus: fix spelling mistake "entires" -> "entries"

Trivial fix to spelling mistake
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/tools/README.loopback

@@ -79,7 +79,7 @@ Here is the summary of the available options:
    -t     must be one of the test names - sink, transfer or ping
    -i     iteration count - the number of iterations to run the test over
  Optional arguments
-   -S     sysfs location - location for greybus 'endo' entires default /sys/bus/greybus/devices/
+   -S     sysfs location - location for greybus 'endo' entries default /sys/bus/greybus/devices/
    -D     debugfs location - location for loopback debugfs entries default /sys/kernel/debug/gb_loopback/
    -s     size of data packet to send during test - defaults to zero
    -m     mask - a bit mask of connections to include example: -m 8 = 4th connection -m 9 = 1st and 4th connection etc

drivers/staging/greybus/tools/loopback_test.c

@@ -192,7 +192,7 @@ void usage(void)
 	"   -t     must be one of the test names - sink, transfer or ping\n"
 	"   -i     iteration count - the number of iterations to run the test over\n"
 	" Optional arguments\n"
-	"   -S     sysfs location - location for greybus 'endo' entires default /sys/bus/greybus/devices/\n"
+	"   -S     sysfs location - location for greybus 'endo' entries default /sys/bus/greybus/devices/\n"
 	"   -D     debugfs location - location for loopback debugfs entries default /sys/kernel/debug/gb_loopback/\n"
 	"   -s     size of data packet to send during test - defaults to zero\n"
 	"   -m     mask - a bit mask of connections to include example: -m 8 = 4th connection -m 9 = 1st and 4th connection etc\n"