rust: avoid some things that break bitbake, add more patches

classes/internal-rust-cross.bbclass

@@ -10,7 +10,7 @@ PN = "rust-cross-${TARGET_ARCH}"
 
 # The same value as ${TOOLCHAIN_OPTIONS}. We can't use that variable directly
 # here because cross.bblcass is "helpful" and blanks it out.
-TARGET_PRE_LINK_ARGS_append = " --sysroot=${STAGING_DIR_TARGET}"
+#TARGET_PRE_LINK_ARGS_append = " --sysroot=${STAGING_DIR_TARGET}"
 
 # We need the same thing for the calls to the compiler when building the runtime crap
 TARGET_CC_ARCH_append = " --sysroot=${STAGING_DIR_TARGET}"