Move OS CLOCK rate to target define

libraries/rtos/rtx/TARGET_CORTEX_M/RTX_Conf_CM.c

@@ -152,9 +152,6 @@
 #elif defined(TARGET_STM32F103RB)
 #    define OS_CLOCK       72000000
 
-#elif defined(TARGET_MTS_MDOT)
-#    define OS_CLOCK       48000000
-
 #  else
 #    error "no target defined"
 #  endif

workspace_tools/targets.py

@@ -594,7 +594,7 @@ class MTS_MDOT(Target):
         Target.__init__(self)
         self.core = "Cortex-M4F"
         self.extra_labels = ['STM', 'STM32F4', 'STM32F405RG']
-        self.macros = ['HSE_VALUE=26000000']
+        self.macros = ['HSE_VALUE=26000000', 'OS_CLOCK=48000000']
         self.supported_toolchains = ["ARM", "uARM", "GCC_ARM", "IAR"]
         self.is_disk_virtual = True
         self.default_toolchain = "ARM"