microblaze: Move CONFIG_LMB from board file to config.h

It is common for the whole architecture that's why move it there.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/config.h

@@ -6,6 +6,8 @@
 #ifndef _ASM_CONFIG_H_
 #define _ASM_CONFIG_H_
 
+#define CONFIG_LMB
+
 #ifndef CONFIG_SPL_BUILD
 #define CONFIG_NEEDS_MANUAL_RELOC
 #endif

include/configs/microblaze-generic.h

@@ -152,9 +152,6 @@
 					"setenv stdin serial\0"
 #endif
 
-/* Enable flat device tree support */
-#define CONFIG_LMB		1
-
 #if defined(CONFIG_XILINX_AXIEMAC)
 # define CONFIG_SYS_FAULT_ECHO_LINK_DOWN	1
 #endif