Use the same icon for battery

Before this cl, we use different battery icon in the following place:
1. half battery icon in settings page 1
2. full battery icon in settings shortcut(Long press app settings)

This cl refines them to use the same battery icon: full battery icon.

Bug: 36467034
Test: Screenshot
Change-Id: Ibec92ad057a47e6cc7763a4bc6e1e1c16c6288c0