stm32f7: makefile consistent style

Had already been sorted like f4, just use the same style as everywhere
now

lib/stm32/f7/Makefile

@@ -40,30 +40,30 @@ TGT_CFLAGS	+= $(STANDARD_FLAGS)
 
 ARFLAGS		= rcs
 
-OBJS		+= adc_common_v1.o adc_common_v1_multi.o adc_common_f47.o
-OBJS		+= can.o
-OBJS		+= crc_common_all.o crc_v2.o
-OBJS		+= dac_common_all.o
-OBJS		+= desig.o
-OBJS		+= dma_common_f24.o
-OBJS		+= dma2d_common_f47.o
-OBJS		+= dsi_common_f47.o
-OBJS		+= exti_common_all.o
-OBJS		+= flash_common_all.o flash_common_f.o flash_common_f24.o flash.o
-OBJS		+= fmc_common_f47.o
-OBJS		+= gpio_common_all.o gpio_common_f0234.o
-OBJS		+= i2c_common_v2.o
-OBJS		+= iwdg_common_all.o
-OBJS		+= ltdc_common_f47.o 
-OBJS		+= pwr.o rcc.o
-OBJS		+= rcc_common_all.o
-OBJS		+= rng_common_v1.o
-OBJS		+= spi_common_all.o spi_common_v2.o
-OBJS		+= timer_common_all.o
-OBJS		+= usart_common_all.o usart_common_v2.o
+OBJS += adc_common_v1.o adc_common_v1_multi.o adc_common_f47.o
+OBJS += can.o
+OBJS += crc_common_all.o crc_v2.o
+OBJS += dac_common_all.o
+OBJS += desig.o
+OBJS += dma_common_f24.o
+OBJS += dma2d_common_f47.o
+OBJS += dsi_common_f47.o
+OBJS += exti_common_all.o
+OBJS += flash_common_all.o flash_common_f.o flash_common_f24.o flash.o
+OBJS += fmc_common_f47.o
+OBJS += gpio_common_all.o gpio_common_f0234.o
+OBJS += i2c_common_v2.o
+OBJS += iwdg_common_all.o
+OBJS += ltdc_common_f47.o
+OBJS += pwr.o rcc.o
+OBJS += rcc_common_all.o
+OBJS += rng_common_v1.o
+OBJS += spi_common_all.o spi_common_v2.o
+OBJS += timer_common_all.o
+OBJS += usart_common_all.o usart_common_v2.o
 
 # Ethernet
-OBJS		+= mac.o phy.o mac_stm32fxx7.o phy_ksz80x1.o
+OBJS += mac.o phy.o mac_stm32fxx7.o phy_ksz80x1.o
 
 VPATH += ../../usb:../:../../cm3:../common
 VPATH += ../../ethernet