fix(g4): RAM size of G491 & G4A1 is 112k not 128k (fixes #2835) #1069

Job	Run time
Check CMake usage (NUCLEO_F103RB)	42s
Check CMake usage (NUCLEO_F303RE)	44s
Check CMake usage (NUCLEO_G0B1RE)	46s
Check CMake usage (NUCLEO_F767ZI)	44s
Check CMake usage (NUCLEO_H563ZI)	50s
Check CMake usage (NUCLEO_F207ZG)	45s
Check CMake usage (NUCLEO_F411RE)	45s
Check CMake usage (NUCLEO_WBA55CG)	43s
Check CMake usage (NUCLEO_L552ZE_Q)	46s
Check CMake usage (NUCLEO_F091RC)	43s
Check CMake usage (NUCLEO_G474RE)	44s
Check CMake usage (NUCLEO_L476RG)	43s
Check CMake usage (NUCLEO_WL55JC1)	38s
Check CMake usage (NUCLEO_L073RZ)	45s
Check CMake usage (NUCLEO_L152RE)	44s
Check CMake usage (NUCLEO_U575ZI_Q)	48s
Check CMake usage (NUCLEO_U083RC)	35s
Check CMake usage (P_NUCLEO_WB55RG)	38s
Check CMake usage (NUCLEO_H743ZI2)	39s
	13m 42s

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