disable uClibc-ng (not ready). fix gcc configure

target/config/Config.in.cpu

@@ -305,7 +305,6 @@ config ADK_TARGET_GCC_CPU
 	default "powerpc" if ADK_CPU_PPC
 	default "powerpc64" if ADK_CPU_PPC64
 	default "ultrasparc" if ADK_CPU_SPARC_V9
-	default "v7.10.d" if ADK_CPU_MICROBLAZE
 	default "v8" if ADK_CPU_SPARC_V8
 	default "x86-64" if ADK_CPU_X86_64
 	default "xscale" if ADK_CPU_XSCALE
@@ -322,6 +321,7 @@ config ADK_TARGET_CPU_FLAGS
 	string
 	default "-mcpu=v10" if ADK_CPU_CRIS_V10
 	default "-mcpu=v32" if ADK_CPU_CRIS_V32
+	default "-mcpu=v7.10.d" if ADK_CPU_MICROBLAZE
 
 config ADK_TARGET_CPU_ARCH
 	string

target/config/Config.in.libc.choice

@@ -10,6 +10,7 @@ config ADK_TARGET_LIB_UCLIBC_NG
 	depends on \
 		   !ADK_TARGET_ARCH_AARCH64 && \
 		   !ADK_TARGET_ARCH_ALPHA && \
+		   !ADK_TARGET_ARCH_MICROBLAZE && \
 		   !ADK_TARGET_ARCH_NIOS2 && \
 		   !ADK_TARGET_ARCH_SPARC64 && \
 		   !ADK_TARGET_ARCH_PPC64 && \