disable uart0 uart7 uart9

hc

2023-11-22 983d7f83616922a6439b4352d1b3af488ee27f95

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#include "tree.def"
END_OF_BASE_TREE_CODES
#include "c-family/c-common.def"
#include "ada/gcc-interface/ada-tree.def"
#include "cp/cp-tree.def"
#include "java/java-tree.def"
#include "objc/objc-tree.def"