km8309: change the default QE_FW address

It should be after the u-boot reserved sectors and before the env
sectors, since the solution used for kmvect1 (tell the linker to put the
firmware into the u-boot produced binary, at the end of the area) should
be the exception.

The #define is only "conditional" so that we can still support kmvect1.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>

include/configs/km/km8309-common.h

@@ -28,8 +28,10 @@
 
 /* QE microcode/firmware address */
 #define CONFIG_SYS_QE_FMAN_FW_IN_NOR
-/* at end of uboot partition, before env */
-#define CONFIG_SYS_QE_FW_ADDR   0xF00B0000
+/* between the u-boot partition and env */
+#ifndef CONFIG_SYS_QE_FW_ADDR
+#define CONFIG_SYS_QE_FW_ADDR   0xF00C0000
+#endif
 
 /*
  * System IO Config