toolchain-buildroot: only allow the selection of Musl for Microblaze BE

The Musl C library only supports Microblaze BE, not Microblaze LE, so
this commit adjusts the dependencies of the toolchain-buildroot
package to not allow the selection of Musl on Microblaze LE.

Cc: William Welch <bvwelch@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

toolchain/toolchain-buildroot/Config.in

@@ -80,7 +80,7 @@ comment "(e)glibc only available with shared lib support"
 
 config BR2_TOOLCHAIN_BUILDROOT_MUSL
 	bool "musl (experimental)"
-	depends on BR2_arm || BR2_armeb || BR2_i386 || BR2_microblaze || \
+	depends on BR2_arm || BR2_armeb || BR2_i386 || BR2_microblazebe || \
 		BR2_mips || BR2_mipsel || BR2_powerpc || BR2_x86_64
 	select BR2_TOOLCHAIN_USES_MUSL
 	help