x86: Fix cosmetic issues in the i8254 and i8259 codes

This cleans up i8254 and i8259 codes to fix several cosmetic
issues, like coding convention and some comments improvement.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/include/asm/i8254.h b/arch/x86/include/asm/i8254.h
index 4116de1..48e4df2 100644
--- a/arch/x86/include/asm/i8254.h
+++ b/arch/x86/include/asm/i8254.h
@@ -5,38 +5,35 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-
 /* i8254.h Intel 8254 PIT registers */
 
-
 #ifndef _ASMI386_I8254_H_
-#define _ASMI386_I8954_H_       1
+#define _ASMI386_I8954_H_
 
-
-#define PIT_T0		0x00		/* PIT channel 0 count/status */
-#define PIT_T1		0x01		/* PIT channel 1 count/status */
-#define PIT_T2		0x02		/* PIT channel 2 count/status */
-#define PIT_COMMAND	0x03		/* PIT mode control, latch and read back */
+#define PIT_T0		0x00	/* PIT channel 0 count/status */
+#define PIT_T1		0x01	/* PIT channel 1 count/status */
+#define PIT_T2		0x02	/* PIT channel 2 count/status */
+#define PIT_COMMAND	0x03	/* PIT mode control, latch and read back */
 
 /* PIT Command Register Bit Definitions */
 
-#define PIT_CMD_CTR0	0x00		/* Select PIT counter 0 */
-#define PIT_CMD_CTR1	0x40		/* Select PIT counter 1 */
-#define PIT_CMD_CTR2	0x80		/* Select PIT counter 2 */
+#define PIT_CMD_CTR0	0x00	/* Select PIT counter 0 */
+#define PIT_CMD_CTR1	0x40	/* Select PIT counter 1 */
+#define PIT_CMD_CTR2	0x80	/* Select PIT counter 2 */
 
-#define PIT_CMD_LATCH	0x00		/* Counter Latch Command */
-#define PIT_CMD_LOW	0x10		/* Access counter bits 7-0 */
-#define PIT_CMD_HIGH	0x20		/* Access counter bits 15-8 */
-#define PIT_CMD_BOTH	0x30		/* Access counter bits 15-0 in two accesses */
+#define PIT_CMD_LATCH	0x00	/* Counter Latch Command */
+#define PIT_CMD_LOW	0x10	/* Access counter bits 7-0 */
+#define PIT_CMD_HIGH	0x20	/* Access counter bits 15-8 */
+#define PIT_CMD_BOTH	0x30	/* Access counter bits 15-0 in two accesses */
 
-#define PIT_CMD_MODE0	0x00		/* Select mode 0 */
-#define PIT_CMD_MODE1	0x02		/* Select mode 1 */
-#define PIT_CMD_MODE2	0x04		/* Select mode 2 */
-#define PIT_CMD_MODE3	0x06		/* Select mode 3 */
-#define PIT_CMD_MODE4	0x08		/* Select mode 4 */
-#define PIT_CMD_MODE5	0x0A		/* Select mode 5 */
+#define PIT_CMD_MODE0	0x00	/* Select mode 0 */
+#define PIT_CMD_MODE1	0x02	/* Select mode 1 */
+#define PIT_CMD_MODE2	0x04	/* Select mode 2 */
+#define PIT_CMD_MODE3	0x06	/* Select mode 3 */
+#define PIT_CMD_MODE4	0x08	/* Select mode 4 */
+#define PIT_CMD_MODE5	0x0a	/* Select mode 5 */
 
 /* The clock frequency of the i8253/i8254 PIT */
-#define PIT_TICK_RATE	1193182ul
+#define PIT_TICK_RATE	1193182
 
-#endif
+#endif /* _ASMI386_I8954_H_ */