clk: stm32: END_PRIMARY_CLK should be declare after CLK_SYSCLK

Update of END_PRIMARY_CLK was missed, it should be after CLK_SYSCLK
hsi and sysclk are overwritten by gpioa and gpiob.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Tested-by: Philippe Cornu <philippe.cornu@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>