refactor(core): turn RDI into a firmware feature flag

core/Makefile

@@ -20,7 +20,6 @@ CROSS_PORT_OPTS ?=
 PRODUCTION ?= 0
 PYOPT      ?= 1
 BITCOIN_ONLY ?= 0
-RDI        ?= 1
 TREZOR_MODEL ?= T
 TREZOR_MEMPERF ?= 0
 

core/SConscript.firmware

@@ -3,10 +3,13 @@
 import os
 
 BITCOIN_ONLY = ARGUMENTS.get('BITCOIN_ONLY', '0')
-RDI = ARGUMENTS.get('RDI', '1') == '1'
 EVERYTHING = BITCOIN_ONLY != '1'
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
 
+FEATURE_FLAGS = {
+    "RDI": True,
+}
+
 CCFLAGS_MOD = ''
 CPPPATH_MOD = []
 CPPDEFINES_MOD = []
@@ -343,7 +346,7 @@ SOURCE_TREZORHAL = [
     'embed/trezorhal/vectortable.s',
 ]
 
-if RDI:
+if FEATURE_FLAGS["RDI"]:
     SOURCE_TREZORHAL += [
         'embed/trezorhal/rdi.c',
     ]