RISC-V: fix funct4 definition for c.jalr in parse_asm.h

The opcode definition for c.jalr is
    c.jalr c_rs1_n0  1..0=2 15..13=4 12=1 6..2=0

This means funct4 consisting of bit [15:12] is 1001b, so the value is 0x9.

Fixes: edde5584 ("riscv: Add SW single-step support for KDB")
Reported-by: Andrew Jones <ajones@ventanamicro.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/20221223221332.4127602-2-heiko@sntech.deSigned-off-by: Palmer Dabbelt <palmer@rivosinc.com>

arch/riscv/include/asm/parse_asm.h

@@ -125,7 +125,7 @@
 #define FUNCT3_C_J		0xa000
 #define FUNCT3_C_JAL		0x2000
 #define FUNCT4_C_JR		0x8000
-#define FUNCT4_C_JALR		0xf000
+#define FUNCT4_C_JALR		0x9000
 
 #define FUNCT12_SRET		0x10200000