🩹 FLYmaker FLY Mini followup (#22364)

Followup to #22355, #22356.

ini/stm32f1-maple.ini

 platform      = ${common_stm32f1.platform}
 extends       = env:chitu_f103
 build_flags   = ${env:chitu_f103.build_flags} -DCHITU_V5_Z_MIN_BUGFIX
+
+#
+# FLYmaker FLY Mini (STM32F103RCT6)
+#
+[env:FLY_MINI_maple]
+platform          = ${common_stm32f1.platform}
+extends           = common_stm32f1
+board             = genericSTM32F103RC
+board_build.address  = 0x08005000
+board_build.ldscript = fly_mini.ld
+extra_scripts     = ${common_stm32f1.extra_scripts}
+  buildroot/share/PlatformIO/scripts/custom_board.py
+build_flags       = ${common_stm32f1.build_flags}
+ -DDEBUG_LEVEL=0 -DSS_TIMER=4

ini/stm32f1.ini

 src_filter  = ${common.default_src_filter} +<src/HAL/STM32>
 
 #
-# FLY Mini (STM32F103RCT6)
+# FLYmaker FLY Mini (STM32F103RCT6)
 #
 [env:FLY_MINI]
 platform             = ${common_stm32.platform}