[DPLL] Extract DPLL_BYP_CLKSEL bit data for all DPLL types

As both DPLL types A and B has this DPLL_BYP_CLKSEL bit data, we
should extract this value for both types. The original code only does
it for type A.

Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jin Zheng <j-zheng@ti.com>