mb/google/sarien/Kconfig: Remove blank line at beginning

Change-Id: I0410be48f360bdd00e4ed7599cbee405915344b9
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/google/sarien/Kconfig

@@ -1,4 +1,3 @@
-
 config BOARD_GOOGLE_BASEBOARD_SARIEN
 	def_bool n
 	select BOARD_ROMSIZE_KB_32768