net/octeontx2: support flow API dump

net/octeontx2: support flow API dump

Add support to dump hardware internal representation information of
rte flow to file.

Every flow rule added will be dumped in the below format.

MCAM Index:1881
Interface :NIX-RX (0)
Priority  :1
NPC RX Action:0X00000000404001
        ActionOp:NIX_RX_ACTIONOP_UCAST (1)
        PF_FUNC: 0X400
        RQ Index:0X004
        Match Id:0000
        Flow Key Alg:0
NPC RX VTAG Action:0X00000000008100
        VTAG0:relptr:0
        lid:0X1
        type:0
Patterns:
        NPC_PARSE_NIBBLE_CHAN:000
        NPC_PARSE_NIBBLE_LA_LTYPE:LA_ETHER
        NPC_PARSE_NIBBLE_LB_LTYPE:NONE
        NPC_PARSE_NIBBLE_LC_LTYPE:LC_IP
        NPC_PARSE_NIBBLE_LD_LTYPE:LD_TCP
        NPC_PARSE_NIBBLE_LE_LTYPE:NONE
        LA_ETHER, hdr offset:0, len:0X6, key offset:0X8,\
		Data:0X4AE124FC7FFF, Mask:0XFFFFFFFFFFFF
        LA_ETHER, hdr offset:0XC, len:0X2, key offset:0X4, Data:0XCA5A,\
		Mask:0XFFFF
        LC_IP, hdr offset:0XC, len:0X8, key offset:0X10,\
		Data:0X0A01010300000000, Mask:0XFFFFFFFF00000000
        LD_TCP, hdr offset:0, len:0X4, key offset:0X18, Data:0X03450000,\
		Mask:0XFFFF0000
MCAM Raw Data :
        DW0     :0000CA5A01202000
        DW0_Mask:0000FFFF0FF0F000
        DW1     :00004AE124FC7FFF
        DW1_Mask:0000FFFFFFFFFFFF
        DW2     :0A01010300000000
        DW2_Mask:FFFFFFFF00000000
        DW3     :0000000003450000
        DW3_Mask:00000000FFFF0000
        DW4     :0000000000000000
        DW4_Mask:0000000000000000
        DW5     :0000000000000000
        DW5_Mask:0000000000000000
        DW6     :0000000000000000
        DW6_Mask:0000000000000000

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>