microblaze: Enable several ethernet driver compilation

U-Boot's multipple network supports enables to use
several ethernet drivers but microblaze-generic
platform config file select only one driver.

Reported-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Stephan Linz <linz@li-pro.net>

include/configs/microblaze-generic.h

@@ -65,11 +65,12 @@
 
 /* ethernet */
 #undef CONFIG_SYS_ENET
-#ifdef XILINX_EMACLITE_BASEADDR
-# define CONFIG_XILINX_EMACLITE		1
+#if defined(XILINX_EMACLITE_BASEADDR)
+# define CONFIG_XILINX_EMACLITE	1
 # define CONFIG_SYS_ENET
-#elif XILINX_LLTEMAC_BASEADDR
-# define CONFIG_XILINX_LL_TEMAC		1
+#endif
+#if defined(XILINX_LLTEMAC_BASEADDR)
+# define CONFIG_XILINX_LL_TEMAC	1
 # define CONFIG_SYS_ENET
 #endif
 #if defined(XILINX_AXIEMAC_BASEADDR)
@@ -339,7 +340,7 @@
 #define CONFIG_FIT		1
 #define CONFIG_OF_LIBFDT	1
 
-#if defined(CONFIG_XILINX_AXIEMAC)
+#if defined(CONFIG_XILINX_LL_TEMAC) || defined(CONFIG_XILINX_AXIEMAC)
 # define CONFIG_MII		1
 # define CONFIG_CMD_MII		1
 # define CONFIG_PHY_GIGE	1