selftests: hid: fix typo and exit code

The correct exit code to mark a test as skipped is 4.

Fixes: ffb85d5 ("selftests: hid: import hid-tools hid-core tests")
Signed-off-by: Maximilian Heyne <mheyne@amazon.de>
Link: https://patch.msgid.link/20241126135850.76493-1-mheyne@amazon.de
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Author: heynemax

tools/testing/selftests/hid/run-hid-tools-tests.sh

@@ -2,24 +2,26 @@
 # SPDX-License-Identifier: GPL-2.0
 # Runs tests for the HID subsystem
 
+KSELFTEST_SKIP_TEST=4
+
 if ! command -v python3 > /dev/null 2>&1; then
 	echo "hid-tools: [SKIP] python3 not installed"
-	exit 77
+	exit $KSELFTEST_SKIP_TEST
 fi
 
 if ! python3 -c "import pytest" > /dev/null 2>&1; then
-	echo "hid: [SKIP/ pytest module not installed"
-	exit 77
+	echo "hid: [SKIP] pytest module not installed"
+	exit $KSELFTEST_SKIP_TEST
 fi
 
 if ! python3 -c "import pytest_tap" > /dev/null 2>&1; then
-	echo "hid: [SKIP/ pytest_tap module not installed"
-	exit 77
+	echo "hid: [SKIP] pytest_tap module not installed"
+	exit $KSELFTEST_SKIP_TEST
 fi
 
 if ! python3 -c "import hidtools" > /dev/null 2>&1; then
-	echo "hid: [SKIP/ hid-tools module not installed"
-	exit 77
+	echo "hid: [SKIP] hid-tools module not installed"
+	exit $KSELFTEST_SKIP_TEST
 fi
 
 TARGET=${TARGET:=.}