clk: socfpga: cleanup spdx tags

Replace tabs with spaces in SPDX tag
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20220217173453.3262672-1-trix@redhat.comAcked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/socfpga/clk-periph-s10.c

-// SPDX-License-Identifier:	GPL-2.0
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2017, Intel Corporation
  */

drivers/clk/socfpga/clk-pll-s10.c

-// SPDX-License-Identifier:	GPL-2.0
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2017, Intel Corporation
  */

drivers/clk/socfpga/clk-s10.c

-// SPDX-License-Identifier:	GPL-2.0
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2017, Intel Corporation
  */