Fixed side fps notification for large text

Test: Manually verified content no longer overflows on various font
sizes (1, 1.2, 1.6, 2, 3)
Test: adb shell settings put system font_scale (1, 1.2, 1.6, 2, 3)
Fixes: 315424526

Change-Id: Iffe3a0542fbdbae7f5b464c2ef30967ecf3990a0