update uClibc config for nios2

toolchain/uClibc/uclibc.mk

@@ -192,6 +192,12 @@ ifeq ($(BR2_mips_64),y)
 	$(SED) 's/.*\(CONFIG_MIPS_ISA_MIPS64\).*/\1=y/' $(UCLIBC_DIR)/.oldconfig
 endif
 endif
+ifeq ($(UCLIBC_TARGET_ARCH),nios2)
+	/bin/echo "# UCLIBC_FORMAT_FDPIC_ELF is not set" >> $(UCLIBC_DIR)/.oldconfig
+	/bin/echo "UCLIBC_FORMAT_FLAT=y" >> $(UCLIBC_DIR)/.oldconfig
+	/bin/echo "# UCLIBC_FORMAT_FLAT_SEP_DATA is not set" >> $(UCLIBC_DIR)/.oldconfig
+	/bin/echo "# UCLIBC_FORMAT_SHARED_FLAT is not set" >> $(UCLIBC_DIR)/.oldconfig
+endif
 ifeq ($(UCLIBC_TARGET_ARCH),sh)
 	/bin/echo "# CONFIG_SH2A is not set" >> $(UCLIBC_DIR)/.oldconfig
 	/bin/echo "# CONFIG_SH2 is not set" >> $(UCLIBC_DIR)/.oldconfig