[BSP] add Libraries when scons --dist

bsp/at32/at32f403a-start/rtconfig.py

@@ -57,7 +57,7 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    CXXFLAGS = CFLAGS 
+    CXXFLAGS = CFLAGS
 
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
@@ -88,7 +88,7 @@ elif PLATFORM == 'armcc':
     else:
         CFLAGS += ' -O2'
 
-    CXXFLAGS = CFLAGS 
+    CXXFLAGS = CFLAGS
     CFLAGS += ' -std=c99'
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
@@ -136,7 +136,7 @@ elif PLATFORM == 'iar':
 
     LFLAGS = ' --config "board/linker_scripts/link.icf"'
     LFLAGS += ' --entry __iar_program_start'
-    
+
     CXXFLAGS = CFLAGS
 
     EXEC_PATH = EXEC_PATH + '/arm/bin/'