[PATCH] input: ti_am33x_tsc: make the documentation for the ti,wire-config parameter clear

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The document says "first four bits" and means the upper nibble. Most
people would probably agree that the first four bits are bits 0…3 and
that is the lower nibble.
This patch updates the documentation so it is clear what is meant.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
index 491c97b..0fcd430 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
@@ -17,8 +17,8 @@
 				remaining 4 can be used by the ADC.
 	ti,wire-config: Different boards could have a different order for
 			connecting wires on touchscreen. We need to provide an
-			8 bit number where in the 1st four bits represent the
-			analog lines and the next 4 bits represent positive/
+			8 bit number where the upper nibble represent the
+			analog lines and the lower nibble represent positive/
 			negative terminal on that input line. Notations to
 			represent the input lines and terminals resoectively
 			is as follows:
-- 
1.8.4.2

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