arch/non-x86: Remove use of __PRE_RAM__

Change-Id: Id8918f40572497b068509b5d5a490de0435ad50b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34921
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

src/cpu/ti/am335x/uart.c

@@ -182,7 +182,6 @@ void uart_tx_flush(int idx)
 {
 }
 
-#ifndef __PRE_RAM__
 void uart_fill_lb(void *data)
 {
 	struct lb_serial serial;
@@ -194,4 +193,3 @@ void uart_fill_lb(void *data)
 
 	lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
 }
-#endif