mfd: htc-i2cpld: Use '!variable' instead of 'variable == NULL'

This aids in consistency, as the rest of the checks in the file use this
notation.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2014-08-13 13:52:27 +01:00
commit 41cc08e955