Cleanup cmake vst3 arch support

Signed-off-by: falkTX <falktx@falktx.com>

cmake/DPF-plugin.cmake

@@ -493,10 +493,8 @@ function(dpf__determine_vst3_package_architecture OUTPUT_VARIABLE)
     else()
       set(vst3_package_arch "i386")
     endif()
-  elseif(vst3_system_arch MATCHES "^(armv[3-8][a-z]*|ppc(64)?(le)?)$")
+  elseif(vst3_system_arch MATCHES "^(armv[3-9][a-z]*|aarch64|loongarch64|ppc(64)?(le)?)$")
     set(vst3_package_arch "${vst3_system_arch}")
-  elseif(vst3_system_arch MATCHES "^(aarch64)$")
-    set(vst3_package_arch "aarch64")
   else()
     message(FATAL_ERROR "We don't know this architecture for VST3: ${vst3_system_arch}.")
   endif()