gdb: reword prompt for host TUI option

There is no need to name the option "GDB TUI support", since this
option is already visible "below" GDB in menuconfig/xconfig. Naming it
"TUI support" is therefore sufficient.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gdb/Config.in.host

@@ -14,7 +14,7 @@ config BR2_PACKAGE_HOST_GDB
 if BR2_PACKAGE_HOST_GDB
 
 config BR2_PACKAGE_HOST_GDB_TUI
-	bool "GDB TUI support"
+	bool "TUI support"
 	help
 	  This option enables terminal user interface (TUI) for gdb