bpf: allocate 0x06 to new eBPF instruction class JMP32

The new eBPF instruction class JMP32 uses the reserved class number 0x6.
Kernel BPF ISA documentation updated accordingly.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/include/uapi/linux/bpf.h

@@ -14,6 +14,7 @@
 /* Extended instruction set based on top of classic BPF */
 
 /* instruction classes */
+#define BPF_JMP32	0x06	/* jmp mode in word width */
 #define BPF_ALU64	0x07	/* alu mode in double word width */
 
 /* ld/ldx fields */