debian: source is architecture all

debian/control

@@ -11,7 +11,7 @@ Vcs-Browser: https://github.com/brektrou/rtl8821CU
 Vcs-Git: https://github.com/brektrou/rtl8821CU.git
 
 Package: rtl8821cu-dkms
-Architecture: amd64
+Architecture: all
 Multi-Arch: foreign
 Depends: ${misc:Depends}
 Provides: rtl8821cu-module
@@ -26,7 +26,7 @@ Description: DKMS files to build and install rtl8821cu
  architecture>").
 
 Package: rtl8821cu-src
-Architecture: amd64
+Architecture: all
 Depends: module-assistant,
          debhelper (>= 5.0.37),
          xz-utils,