MIPS: Whitespace cleanup.

Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/regdef.h

@@ -19,44 +19,44 @@
 /*
  * Symbolic register names for 32 bit ABI
  */
-#define zero    $0      /* wired zero */
-#define AT      $1      /* assembler temp  - uppercase because of ".set at" */
-#define v0      $2      /* return value */
-#define v1      $3
-#define a0      $4      /* argument registers */
-#define a1      $5
-#define a2      $6
-#define a3      $7
-#define t0      $8      /* caller saved */
-#define t1      $9
-#define t2      $10
-#define t3      $11
-#define t4      $12
+#define zero	$0	/* wired zero */
+#define AT	$1	/* assembler temp  - uppercase because of ".set at" */
+#define v0	$2	/* return value */
+#define v1	$3
+#define a0	$4	/* argument registers */
+#define a1	$5
+#define a2	$6
+#define a3	$7
+#define t0	$8	/* caller saved */
+#define t1	$9
+#define t2	$10
+#define t3	$11
+#define t4	$12
 #define ta0	$12
-#define t5      $13
+#define t5	$13
 #define ta1	$13
-#define t6      $14
+#define t6	$14
 #define ta2	$14
-#define t7      $15
+#define t7	$15
 #define ta3	$15
-#define s0      $16     /* callee saved */
-#define s1      $17
-#define s2      $18
-#define s3      $19
-#define s4      $20
-#define s5      $21
-#define s6      $22
-#define s7      $23
-#define t8      $24     /* caller saved */
-#define t9      $25
-#define jp      $25     /* PIC jump register */
-#define k0      $26     /* kernel scratch */
-#define k1      $27
-#define gp      $28     /* global pointer */
-#define sp      $29     /* stack pointer */
-#define fp      $30     /* frame pointer */
+#define s0	$16	/* callee saved */
+#define s1	$17
+#define s2	$18
+#define s3	$19
+#define s4	$20
+#define s5	$21
+#define s6	$22
+#define s7	$23
+#define t8	$24	/* caller saved */
+#define t9	$25
+#define jp	$25	/* PIC jump register */
+#define k0	$26	/* kernel scratch */
+#define k1	$27
+#define gp	$28	/* global pointer */
+#define sp	$29	/* stack pointer */
+#define fp	$30	/* frame pointer */
 #define s8	$30	/* same like fp! */
-#define ra      $31     /* return address */
+#define ra	$31	/* return address */
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */