MIPS: PNX8550: Remove unnecessary export prom_getcmdline()

Signed-off-by: NYoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/886/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/nxp/pnx8550/common/prom.c

@@ -124,6 +124,5 @@ void prom_putchar(char c)
 	}
 }
 
-EXPORT_SYMBOL(prom_getcmdline);
 EXPORT_SYMBOL(get_ethernet_addr);
 EXPORT_SYMBOL(str2eaddr);