[NXP][platform][common] Update pw RPC flag in streamer_nxp

Signed-off-by: marius-alex-tache <marius.tache@nxp.com>
(cherry picked from commit 4ae033a1bddd5d914e862791c111eebca41a62e8)

src/lib/shell/streamer_nxp.cpp

@@ -66,7 +66,7 @@
 #endif
 
 // pw RPC uses UART DMA by default
-#ifdef PW_RPC_ENABLED
+#ifdef CONFIG_ENABLE_PW_RPC
 #define CONSUMER_TASK_HANDLE RpcTaskHandle
 #ifndef STREAMER_UART_USE_DMA
 #define STREAMER_UART_USE_DMA 1
@@ -76,7 +76,7 @@
 #ifndef STREAMER_UART_USE_DMA
 #define STREAMER_UART_USE_DMA 0
 #endif
-#endif // PW_RPC_ENABLED
+#endif // CONFIG_ENABLE_PW_RPC
 
 #if STREAMER_UART_USE_DMA
 typedef serial_port_uart_dma_config_t streamer_serial_port_uart_config_t;