stm32: common: fix missing SPI_I2S_BASE rename regression

Fix regresion from 5d4437fe43 where
somehow not all occurrences were replaced.  I could swear it all
compiled when I was working on it :(

Reported-by: Trevor Woerner <trevor.woerner@linaro.org>

lib/stm32/common/spi_common_all.c

@@ -92,7 +92,7 @@ void spi_reset(uint32_t spi_peripheral)
 		break;
 #endif
 #if defined(SPI3_BASE)
-	case SPI3_I2S_BASE:
+	case SPI3_BASE:
 		rcc_periph_reset_pulse(RST_SPI3);
 		break;
 #endif