drivers: serial: cc23x0: Replace incorrect macros

Replace CONFIG_PM with CONFIG_PM_DEVICE to include pm_lock
in cc23x0 UART driver in struct uart_cc23x0_data

Signed-off-by: Stoyan Bogdanov <sbogdanov@baylibre.com>

Author: bogdanovs

drivers/serial/uart_cc23x0.c

@@ -84,7 +84,7 @@ struct uart_cc23x0_data {
 	uint8_t *rx_next_buf;
 	size_t rx_next_len;
 #endif /* CONFIG_UART_CC23X0_DMA_DRIVEN */
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_DEVICE
 	ATOMIC_DEFINE(pm_lock, UART_CC23X0_PM_LOCK_COUNT);
 #endif
 };