linux-phytec-ti

clk: qcom: Do some error handling in configure_bank()

Currently configure_bank() returns void. Add some error
checking on the regmap calls and propagate if there is
any error.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>