RISC-V: kprobes: use central defined funct3 constants

Don't redefine values that are already available in the central header
asm/insn.h . Use the values from there instead.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Link: https://lore.kernel.org/r/20221223221332.4127602-9-heiko@sntech.deSigned-off-by: Palmer Dabbelt <palmer@rivosinc.com>

arch/riscv/kernel/probes/simulate-insn.c

@@ -136,13 +136,6 @@ bool __kprobes simulate_auipc(u32 opcode, unsigned long addr, struct pt_regs *re
 #define branch_offset(opcode) \
 	sign_extend32((branch_imm(opcode)), 12)
 
-#define BRANCH_BEQ	0x0
-#define BRANCH_BNE	0x1
-#define BRANCH_BLT	0x4
-#define BRANCH_BGE	0x5
-#define BRANCH_BLTU	0x6
-#define BRANCH_BGEU	0x7
-
 bool __kprobes simulate_branch(u32 opcode, unsigned long addr, struct pt_regs *regs)
 {
 	/*
@@ -169,22 +162,22 @@ bool __kprobes simulate_branch(u32 opcode, unsigned long addr, struct pt_regs *r
 
 	offset_tmp = branch_offset(opcode);
 	switch (branch_funct3(opcode)) {
-	case BRANCH_BEQ:
+	case RVG_FUNCT3_BEQ:
 		offset = (rs1_val == rs2_val) ? offset_tmp : 4;
 		break;
-	case BRANCH_BNE:
+	case RVG_FUNCT3_BNE:
 		offset = (rs1_val != rs2_val) ? offset_tmp : 4;
 		break;
-	case BRANCH_BLT:
+	case RVG_FUNCT3_BLT:
 		offset = ((long)rs1_val < (long)rs2_val) ? offset_tmp : 4;
 		break;
-	case BRANCH_BGE:
+	case RVG_FUNCT3_BGE:
 		offset = ((long)rs1_val >= (long)rs2_val) ? offset_tmp : 4;
 		break;
-	case BRANCH_BLTU:
+	case RVG_FUNCT3_BLTU:
 		offset = (rs1_val < rs2_val) ? offset_tmp : 4;
 		break;
-	case BRANCH_BGEU:
+	case RVG_FUNCT3_BGEU:
 		offset = (rs1_val >= rs2_val) ? offset_tmp : 4;
 		break;
 	default: