tty: serial: qcom_geni_serial: Initialize baud in qcom_geni_console_setup

commit c5cbc78acf693f5605d4a85b1327fa7933daf092 upstream.

When building with -Wsometimes-uninitialized, Clang warns:

drivers/tty/serial/qcom_geni_serial.c:1079:6: warning: variable 'baud'
is used uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]

It's not wrong; when options is NULL, baud has no default value. Use
9600 as that is a sane default.

Link: https://github.com/ClangBuiltLinux/linux/issues/395
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/qcom_geni_serial.c

@@ -1052,7 +1052,7 @@ static int __init qcom_geni_console_setup(struct console *co, char *options)
 {
 	struct uart_port *uport;
 	struct qcom_geni_serial_port *port;
-	int baud;
+	int baud = 9600;
 	int bits = 8;
 	int parity = 'n';
 	int flow = 'n';