freescale: Tweak various Makefiles to remove redundancy, fix aesthetics

No intended functional change, just remove redundancies in some
Makefiles, and make whitespace aesthetics uniform.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/t102xqds/Makefile b/board/freescale/t102xqds/Makefile
index d94f230..afbc914 100644
--- a/board/freescale/t102xqds/Makefile
+++ b/board/freescale/t102xqds/Makefile
@@ -5,7 +5,7 @@
 #
 
 ifdef CONFIG_SPL_BUILD
-obj-y += spl.o
+obj-y	+= spl.o
 else
 obj-y	+= t102xqds.o
 obj-y	+= eth_t102xqds.o