MIPS: Remove R5000A.

From a software perspective R5000 and R5000A are the same thing which is
why the symbol CPU_R5000A never got used, so finally delete it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/cpu.h

@@ -243,9 +243,9 @@ enum cpu_type_enum {
 	 */
 	CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
 	CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
-	CPU_R4700, CPU_R5000, CPU_R5000A, CPU_R5500, CPU_NEVADA, CPU_R5432,
-	CPU_R10000, CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
-	CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
+	CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
+	CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121, CPU_VR4122,
+	CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
 	CPU_SR71000, CPU_RM9000, CPU_TX49XX,
 
 	/*

arch/mips/mm/tlbex.c

@@ -443,7 +443,6 @@ static void __cpuinit __maybe_unused build_tlb_probe_entry(u32 **p)
 	case CPU_R4600:
 	case CPU_R4700:
 	case CPU_R5000:
-	case CPU_R5000A:
 	case CPU_NEVADA:
 		uasm_i_nop(p);
 		uasm_i_tlbp(p);
@@ -517,7 +516,6 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l,
 		break;
 
 	case CPU_R5000:
-	case CPU_R5000A:
 	case CPU_NEVADA:
 		uasm_i_nop(p); /* QED specifies 2 nops hazard */
 		uasm_i_nop(p); /* QED specifies 2 nops hazard */