cleanup trailing white space

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

target/Config.in.arch

@@ -242,7 +242,7 @@ choice
 	default BR2_mips_1 if BR2_mipsel
 	help
 	  Specific CPU variant to use
-	
+
 	  64bit cabable: 3, 4, 64, 64r2
 	  non-64bit capable: 1, 2, 32, 32r2