src: Get rid of unneeded whitespace

Change-Id: I630d49ab504d9f6e052806b516a600fa41b9a8da
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26991
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/southbridge/amd/sb700/sm.c

@@ -225,7 +225,7 @@ static void sm_init(struct device *dev)
 	pci_write_config8(dev, 0xE1, byte);
 
 	/* 2.5 Enabling Non-Posted Memory Write */
-       	axindxc_reg(0x10, 1 << 9, 1 << 9);
+	axindxc_reg(0x10, 1 << 9, 1 << 9);
 
 	/* 2.11 IO Trap Settings */
 	abcfg_reg(0x10090, 1 << 16, 1 << 16);