src/cpu: Drop unneeded empty lines

Change-Id: I116b15c83fcc5d69d3f80a2e6cf0fb085064d9a6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44604
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/cpu/amd/pi/00660F01/model_15_init.c

@@ -97,7 +97,6 @@ static void model_15_init(struct device *dev)
 	msr.hi &= ~(1 << (46 - 32));
 	wrmsr(NB_CFG_MSR, msr);
 
-
 	/* Write protect SMM space with SMMLOCK. */
 	msr = rdmsr(HWCR_MSR);
 	msr.lo |= (1 << 0);