staging: fwserial: Fix Kconfig indentation (seven spaces)

Adjust indentation from seven spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^       /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: krzk

drivers/staging/fwserial/Kconfig

@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 config FIREWIRE_SERIAL
-       tristate "TTY over Firewire"
-       depends on FIREWIRE && TTY
-       help
+	tristate "TTY over Firewire"
+	depends on FIREWIRE && TTY
+	help
 	  This enables TTY over IEEE 1394, providing high-speed serial
 	  connectivity to cabled peers. This driver implements a
 	  ad-hoc transport protocol and is currently limited to
@@ -14,17 +14,17 @@ config FIREWIRE_SERIAL
 if FIREWIRE_SERIAL
 
 config FWTTY_MAX_TOTAL_PORTS
-       int "Maximum number of serial ports supported"
-       default "64"
-       help
+	int "Maximum number of serial ports supported"
+	default "64"
+	help
 	  Set this to the maximum number of serial ports you want the
 	  firewire-serial driver to support.
 
 config FWTTY_MAX_CARD_PORTS
-       int "Maximum number of serial ports supported per adapter"
-       range 0 FWTTY_MAX_TOTAL_PORTS
-       default "32"
-       help
+	int "Maximum number of serial ports supported per adapter"
+	range 0 FWTTY_MAX_TOTAL_PORTS
+	default "32"
+	help
 	  Set this to the maximum number of serial ports each firewire
 	  adapter supports. The actual number of serial ports registered
 	  is set with the module parameter "ttys".