ppc: qemu: Drop a custom env variable 'fdt_addr_r'

Now that we have switched to CONFIG_OF_CONTROL, and we can use the
env variable 'fdtcontroladdr' directly instead of creating one that
is duplicated.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

board/freescale/qemu-ppce500/qemu-ppce500.c

@@ -168,9 +168,6 @@ int last_stage_init(void)
 	if (prop && (len >= 8))
 		env_set_hex("qemu_kernel_addr", *prop);
 
-	/* Give the user a variable for the host fdt */
-	env_set_hex("fdt_addr_r", (ulong)fdt);
-
 	return 0;
 }
 

include/configs/qemu-ppce500.h

@@ -106,6 +106,6 @@ extern unsigned long long get_phys_ccsrbar_addr_early(void);
 #define CONFIG_LOADADDR		1000000
 
 #define CONFIG_BOOTCOMMAND		\
-	"test -n \"$qemu_kernel_addr\" && bootm $qemu_kernel_addr - $fdt_addr_r\0"
+	"test -n \"$qemu_kernel_addr\" && bootm $qemu_kernel_addr - $fdtcontroladdr\0"
 
 #endif	/* __QEMU_PPCE500_H */