mainboard: Trivial - drop trailing blank lines at EOF

Change-Id: I05d6d22664155ac8478e665733f816776e277c22
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6200
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/mainboard/intel/emeraldlake2/chromeos.c

@@ -112,4 +112,3 @@ int get_recovery_mode_switch(void)
 	/* Recovery: GPIO22, active low */
 	return !((gp_lvl >> 22) & 1);
 }
-