Fixup Default to minimally light display on mce startup
Fixup Default to minimally light display on mce startup

Fixup 3fa9b41 (Default to minimally light display on mce startup).
Earlier in g_module_check_init() cached_brightness is set to match
current brightness. After write_brightness_value(1) the value of
cached_brightness gets out of sync with reality and as a result an
immediately following request to set brightness to value equal to
cached_brightness would be ignored.  (Only happens on devices where
brightness_output.path is used to control brightness - othervise
cached_brightness is set to -1 initially.)

Detected by ut_display, test case ut_check_sw_fading.

spiiroin/mce,mlehtima/mce,kimmoli/mce,mikkoharju/mce,maikelwever/mce,mlehtima/mce,mlehtima/mce,kimmoli/mce,spiiroin/mce,mikkoharju/mce,android-808/mce,android-808/mce,kimmoli/mce,android-808/mce,mikkoharju/mce,android-808/mce,maikelwever/mce,spiiroin/mce,spiiroin/mce,maikelwever/mce,mikkoharju/mce,kimmoli/mce,mlehtima/mce,maikelwever/mce