MIPS: AR7: replace prom_getcmdline() to arcs_cmdline[]

Signed-off-by: NYoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/872/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/ar7/prom.c

@@ -49,11 +49,6 @@ char *prom_getenv(const char *name)
 }
 EXPORT_SYMBOL(prom_getenv);
 
-char * __init prom_getcmdline(void)
-{
-	return &(arcs_cmdline[0]);
-}
-
 static void  __init ar7_init_cmdline(int argc, char *argv[])
 {
 	int i;
@@ -206,7 +201,7 @@ static void __init console_config(void)
 	char parity = '\0', bits = '\0', flow = '\0';
 	char *s, *p;
 
-	if (strstr(prom_getcmdline(), "console="))
+	if (strstr(arcs_cmdline, "console="))
 		return;
 
 	s = prom_getenv("modetty0");