curl: Fix reproducibility issue with LDFLAGS

If we add DEBUG_PREFIX_MAP into LDFLAGS, curl-dev is no longer reproducible.
Fix this.

(From OE-Core rev: 3a30b7ad413de0e8f60504ba2be76107e4324640)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/curl/curl_7.78.0.bb

@@ -73,6 +73,7 @@ do_install:append:class-target() {
 	    -e 's,--sysroot=${STAGING_DIR_TARGET},,g' \
 	    -e 's,--with-libtool-sysroot=${STAGING_DIR_TARGET},,g' \
 	    -e 's|${DEBUG_PREFIX_MAP}||g' \
+	    -e 's|${@" ".join(d.getVar("DEBUG_PREFIX_MAP").split())}||g' \
 	    ${D}${bindir}/curl-config
 }