RGBDS syntax updates (#905)

New MACRO and DEF syntax

lib/mobile/main.asm

@@ -5,22 +5,22 @@ INCLUDE "constants/hardware_constants.asm"
 INCLUDE "constants/mobile_constants.asm"
 
 ; Mobile Adapter protocol commands
-MOBILE_COMMAND_BEGIN_SESSION            EQU $10
-MOBILE_COMMAND_END_SESSION              EQU $11
-MOBILE_COMMAND_DIAL_TELEPHONE           EQU $12
-MOBILE_COMMAND_HANG_UP_TELEPHONE        EQU $13
-MOBILE_COMMAND_WAIT_FOR_TELEPHONE_CALL  EQU $14
-MOBILE_COMMAND_TRANSFER_DATA            EQU $15
-MOBILE_COMMAND_TELEPHONE_STATUS         EQU $17
-MOBILE_COMMAND_READ_CONFIGURATION_DATA  EQU $19
-MOBILE_COMMAND_WRITE_CONFIGURATION_DATA EQU $1a
-MOBILE_COMMAND_TRANSFER_DATA_END        EQU $1f
-MOBILE_COMMAND_ISP_LOGIN                EQU $21
-MOBILE_COMMAND_ISP_LOGOUT               EQU $22
-MOBILE_COMMAND_OPEN_TCP_CONNECTION      EQU $23
-MOBILE_COMMAND_CLOSE_TCP_CONNECTION     EQU $24
-MOBILE_COMMAND_DNS_QUERY                EQU $28
-MOBILE_COMMAND_ERROR                    EQU $6e
+DEF MOBILE_COMMAND_BEGIN_SESSION            EQU $10
+DEF MOBILE_COMMAND_END_SESSION              EQU $11
+DEF MOBILE_COMMAND_DIAL_TELEPHONE           EQU $12
+DEF MOBILE_COMMAND_HANG_UP_TELEPHONE        EQU $13
+DEF MOBILE_COMMAND_WAIT_FOR_TELEPHONE_CALL  EQU $14
+DEF MOBILE_COMMAND_TRANSFER_DATA            EQU $15
+DEF MOBILE_COMMAND_TELEPHONE_STATUS         EQU $17
+DEF MOBILE_COMMAND_READ_CONFIGURATION_DATA  EQU $19
+DEF MOBILE_COMMAND_WRITE_CONFIGURATION_DATA EQU $1a
+DEF MOBILE_COMMAND_TRANSFER_DATA_END        EQU $1f
+DEF MOBILE_COMMAND_ISP_LOGIN                EQU $21
+DEF MOBILE_COMMAND_ISP_LOGOUT               EQU $22
+DEF MOBILE_COMMAND_OPEN_TCP_CONNECTION      EQU $23
+DEF MOBILE_COMMAND_CLOSE_TCP_CONNECTION     EQU $24
+DEF MOBILE_COMMAND_DNS_QUERY                EQU $28
+DEF MOBILE_COMMAND_ERROR                    EQU $6e
 
 
 SECTION "Mobile Adapter SDK", ROMX