[LINKER] Fix the -m parameter

ld/devices.data

@@ -309,14 +309,14 @@ lpc17[78]x lpc17 RAM1_OFF=0x20000000 RAM2_OFF=0x20040000
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 # the STM32 families
 
-stm32f0 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m0 -thumb
-stm32f1 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
-stm32f2 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
-stm32f3 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
-stm32f4 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m4 -thumb
-stm32l1 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
-stm32w stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
-stm32t stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -thumb
+stm32f0 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m0 -mthumb
+stm32f1 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
+stm32f2 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
+stm32f3 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
+stm32f4 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m4 -mthumb
+stm32l1 stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
+stm32w stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
+stm32t stm32 ROM_OFF=0x08000000 RAM_OFF=0x20000000 -mcpu=cortex-m3 -mthumb
 
 ################################################################################
 # the SAM3 families