Fix the following warnings:
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 3 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 4 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 5 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 6 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 7 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@62,104: format '%x' expects argument of type 'unsigned int*', but argument 8 has type 'uint8_t* {aka unsigned char*}' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 3 has type 'char*' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 4 has type 'char*' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 5 has type 'char*' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 6 has type 'char*' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 7 has type 'char*' [-Wformat=]
[Warning] rtw_emac.cpp@201,101: format '%x' expects argument of type 'unsigned int*', but argument 8 has type 'char*' [-Wformat=]
Signed-off-by: Tony Wu <tonywu@realtek.com>
IAR 8.x compiler throws error for emac_interface_t constructor
rtw_emac.cpp@220,0: [Pe1790]: the default constructor of "emac_interface"
cannot be referenced -- it is a deleted function
Error is because new object is created of structure with constant member.
Resolved it by using malloc instead new.