fix: use RXFIFOTR for rx_more_threshold in APB_UART

Signed-off-by: Ashnaa Seth <ashnaaseth2325@gmail.com>
Signed-off-by: ashnaaseth2325-oss <ashnaaseth2325@gmail.com>

Author: ashnaaseth2325-oss

flow/designs/src/chameleon/IPs/APB_UART.v

@@ -142,7 +142,7 @@ module APB_UART(
                                                         32'hDEADDEAD;
 
     wire tx_less_threshold = (tx_level < TXFIFOTR);
-    wire rx_more_threshold = (rx_level > TXFIFOTR);
+    wire rx_more_threshold = (rx_level > RXFIFOTR);
 
 
     assign uart_irq = IMASK[0] & (  (~rx_empty & IMASK[2])  |