MSIM: Update icon for Multi Sim Settings category

Make it white like all the others

Change-Id: I7aed57b57e0151fcc5eb2418f67baf5e33b21658

Conflicts:

	res/values-af/cm_caf.xml
	res/values-ca/cm_caf.xml
	res/values-cs/cm_caf.xml
	res/values-da/cm_caf.xml
	res/values-de/cm_caf.xml
	res/values-es/cm_caf.xml
	res/values-fi/cm_caf.xml
	res/values-it/cm_caf.xml
	res/values-iw/cm_caf.xml
	res/values-nl/cm_caf.xml
	res/values-pt-rBR/cm_caf.xml
	res/values-pt-rPT/cm_caf.xml
	res/values-ru/cm_caf.xml
	res/values-sk/cm_caf.xml
	res/values-tr/cm_caf.xml