mips: remove deprecated UNCACHED_SDRAM() macro

This macro only served as a wrapper for CKSEG1ADDR() with an
exception for CONFIG_TB0229. CONFIG_TB0229 doesn't exist, thus
use CKSEG1ADDR() directly.

This also prepares for an upcoming asm header sync with Linux.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 82f986c..0a13f6e 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -51,7 +51,7 @@
 static void linux_cmdline_init(void)
 {
 	linux_argc = 1;
-	linux_argv = (char **)UNCACHED_SDRAM(gd->bd->bi_boot_params);
+	linux_argv = (char **)CKSEG1ADDR(gd->bd->bi_boot_params);
 	linux_argv[0] = 0;
 	linux_argp = (char *)(linux_argv + LINUX_MAX_ARGS);
 }
@@ -186,7 +186,7 @@
 		      (ulong)(gd->ram_size >> 20));
 	}
 
-	rd_start = UNCACHED_SDRAM(images->initrd_start);
+	rd_start = CKSEG1ADDR(images->initrd_start);
 	rd_size = images->initrd_end - images->initrd_start;
 
 	linux_env_init();