Added detach kernel driver option when compiling librtlsdr as an external library (Linux Debian builds)

external/CMakeLists.txt

@@ -384,7 +384,7 @@ if (LINUX)
         GIT_REPOSITORY https://github.com/osmocom/rtl-sdr.git
         GIT_TAG ${RTLSDR_TAG}
         PREFIX "${EXTERNAL_BUILD_LIBRARIES}/rtlsdr"
-        CMAKE_ARGS ${DEFAULT_OUTPUT_DIRECTORIES} -DINSTALL_UDEV_RULES=${RTLSDR_UDEV}
+        CMAKE_ARGS ${DEFAULT_OUTPUT_DIRECTORIES} -DDETACH_KERNEL_DRIVER=ON -DINSTALL_UDEV_RULES=${RTLSDR_UDEV}
         INSTALL_COMMAND ""
         TEST_COMMAND ""
     )