package/openocd: fix indentation of Config.in help text

Fixes the following check-package warnings:

package/openocd/Config.in:20: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)
package/openocd/Config.in:21: help text: <tab><2 spaces><62 chars> (http://nightly.buildroot.org/#writing-rules-config-in)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/openocd/Config.in

@@ -17,8 +17,8 @@ config BR2_PACKAGE_OPENOCD_CMSIS_DAP
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_HIDAPI
 	help
-          Enable support for CMSIS-DAP compliant debuggers (i.e
-          Atmel/Microchip EDBG, etc.)
+	  Enable support for CMSIS-DAP compliant debuggers (i.e
+	  Atmel/Microchip EDBG, etc.)
 
 config BR2_PACKAGE_OPENOCD_FTDI
 	bool "MPSSE mode of FTDI based devices"