MdeModulePkg/SataControllerDxe: Clean up error handling in Start()

Clean up error handling using cascading labels + goto.

(port of commit 379b179 + bcab714)

Signed-off-by: Pedro Falcato <pedro.falcato@gmail.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
1 file changed