fm10k: cleanup SPACE_BEFORE_TAB checkpatch warning

Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NKrishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/fm10k/fm10k_ptp.c

@@ -416,7 +416,7 @@ void fm10k_ptp_register(struct fm10k_intfc *interface)
 	/* This math is simply the inverse of the math in
 	 * fm10k_adjust_systime_pf applied to an adjustment value
 	 * of 2^30 - 1 which is the maximum value of the register:
-	 * 	max_ppb == ((2^30 - 1) * 5^9) / 2^31
+	 *	max_ppb == ((2^30 - 1) * 5^9) / 2^31
 	 */
 	ptp_caps->max_adj	= 976562;
 	ptp_caps->adjfreq	= fm10k_ptp_adjfreq;