pps: Additional cleanups in uart_handle_dcd_change
pps: Additional cleanups in uart_handle_dcd_change

An extension of the previous commit, there is no semantic change
here, just fewer lines of source code.

Signed-off-by: George Spelvin <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@horizon.com>
Acked-by: Rodolfo Giometti <0e488276ebb90e07fbdb294269f0caf7aa4deab9@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs