arm: m28evk: Zap superfluous tab in env

Remove this tab from env, since it's useless, just use spaces.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

include/configs/m28evk.h

@@ -282,9 +282,9 @@
 		"mmc rescan;"						\
 		"if test -e mmc 0:2 ${bootscript} ; then "		\
 		"if load mmc 0:2 ${kernel_addr_r} ${bootscript};"	\
-		"then;"							\
-			"\techo Running bootscript...;"			\
-			"\tsource ${kernel_addr_r};"			\
+		"then ; "						\
+			"echo Running bootscript... ; "			\
+			"source ${kernel_addr_r} ; "			\
 		"fi ; "							\
 		"fi\0"