toolchain/toolchain-buildroot: allow ARC big endian glibc builds

The current ARC glibc version in buildroot arc-2019.09-rc1 allows to
build an ARC big endian configuration, so let's allow this.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

toolchain/toolchain-buildroot/Config.in

@@ -48,7 +48,7 @@ config BR2_TOOLCHAIN_BUILDROOT_GLIBC
 		   BR2_powerpc     || BR2_powerpc64  || BR2_powerpc64le || \
 		   BR2_riscv       || BR2_sh         || BR2_sparc64     || \
 		   BR2_x86_64      || BR2_microblaze || BR2_nios2       || \
-		   (BR2_arcle && BR2_ARC_ATOMIC_EXT) || BR2_csky
+		   (BR2_arc && BR2_ARC_ATOMIC_EXT)   || BR2_csky
 	depends on BR2_USE_MMU
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2