regulator: da905{2,5}: Remove unnecessary array check

commit 5a7d7d0f9f791b1e13f26dbbb07c86482912ad62 upstream.

Clang warns that the address of a pointer will always evaluated as true
in a boolean context:

drivers/regulator/da9052-regulator.c:423:22: warning: address of array
'pdata->regulators' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (pdata && pdata->regulators) {
                  ~~ ~~~~~~~^~~~~~~~~~
drivers/regulator/da9055-regulator.c:615:22: warning: address of array
'pdata->regulators' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (pdata && pdata->regulators) {
                  ~~ ~~~~~~~^~~~~~~~~~

Link: https://github.com/ClangBuiltLinux/linux/issues/142


Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>