spi: dw: Drop empty line from DebugFS init function

Just drop a redundant empty line from the dw_spi_debugfs_init() function
left in the framework of the commit 0178f1e5 ("spi-dw-core.c: Fix
error checking for debugfs_create_dir") after removing the last return
statement.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20230530221725.26319-1-Sergey.Semin@baikalelectronics.ruSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-dw-core.c

@@ -68,7 +68,6 @@ static void dw_spi_debugfs_init(struct dw_spi *dws)
 	dws->regset.nregs = ARRAY_SIZE(dw_spi_dbgfs_regs);
 	dws->regset.base = dws->regs;
 	debugfs_create_regset32("registers", 0400, dws->debugfs, &dws->regset);
-
 }
 
 static void dw_spi_debugfs_remove(struct dw_spi *dws)