mb/emulation: Remove blank lines before '}' and after '{'

Change-Id: I7071cbcc26e2080020e83b894cf4ac4ef46913c3
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81465
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>

src/mainboard/emulation/qemu-power8/mainboard.c

@@ -5,7 +5,6 @@
 
 static void mainboard_enable(struct device *dev)
 {
-
 	if (!dev) {
 		die("No dev0; die\n");
 	}

src/mainboard/emulation/qemu-power8/uart.c

@@ -21,7 +21,6 @@ unsigned char uart_rx_byte(unsigned int idx)
 
 void uart_tx_byte(unsigned int idx, unsigned char data)
 {
-
 }
 
 void uart_tx_flush(unsigned int idx)