serial/arc-uart: Fix section mistmatch

Commit "serial/arc-uart: split probe from probe_earlyprintk" introduced
a build time warning:

"WARNING: vmlinux.o(.data+0x5baa0): Section mismatch in reference from
the variable early_arc_platform_driver to the function
.init.text:arc_serial_probe_earlyprintk()"

While at it - fixed another incorrectly placed initdata annotation.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: fengguang.wu@intel.com
Cc: linux-serial@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/arc_uart.c

@@ -659,7 +659,7 @@ static __init void early_serial_write(struct console *con, const char *s,
 	}
 }
 
-static struct __initdata console arc_early_serial_console = {
+static struct console arc_early_serial_console __initdata = {
 	.name = "early_ARCuart",
 	.write = early_serial_write,
 	.flags = CON_PRINTBUFFER | CON_BOOT,
@@ -731,7 +731,7 @@ static struct platform_driver arc_platform_driver = {
 
 #ifdef CONFIG_SERIAL_ARC_CONSOLE
 
-static struct platform_driver early_arc_platform_driver = {
+static struct platform_driver early_arc_platform_driver __initdata = {
 	.probe = arc_serial_probe_earlyprintk,
 	.remove = arc_serial_remove,
 	.driver = {