Add --enable-rpath to ICU's build

Remove ICU_DATA flags

Author: Azoy

stdlib/public/runtime/CMakeLists.txt

@@ -220,9 +220,6 @@ foreach(sdk ${SWIFT_SDKS})
 ${libpthread}
 ${android_libraries}
 -lswiftCore
-${libicu_i18n_a}
-${libicu_uc_a}
-${libicu_data_a}
 -lstdc++
 -lm
 -Xlinker -export-dynamic

utils/build-script-impl

@@ -2596,7 +2596,7 @@ for host in "${ALL_HOSTS[@]}"; do
                         ${libicu_enable_debug} \
                         --enable-renaming --with-library-suffix=swift \
                         --libdir=${ICU_TMPLIBDIR} \
-                        --enable-shared --enable-static \
+                        --enable-shared --enable-static --enable-rpath \
                         --enable-strict --disable-icuio \
                         --disable-plugins --disable-dyload --disable-extras \
                         --disable-samples --disable-layoutex --with-data-packaging=auto