kernel.bbclass: Fix race condition

Race condition between do_compile_kernelmodules and do_shared_workdir
tasks occurs when do_compile_kernelmodules changes files in
include/generated/* while do_shared_workdir tries to copy them to
shared working directory.

Fixed race by moving do_shared_workdir after do_compile but before
do_compile_kernelmodules.

[YOCTO #7321]

(From OE-Core rev: b4ec689f71fe9504559c1921c893f5e096d6b744)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/kernel.bbclass

@@ -234,7 +234,7 @@ kernel_do_install() {
 }
 do_install[prefuncs] += "package_get_auto_pr"
 
-addtask shared_workdir after do_compile before do_install
+addtask shared_workdir after do_compile before do_compile_kernelmodules
 
 emit_depmod_pkgdata() {
 	# Stash data for depmod