Added new metrics for tracking unexpected USB events (USB is expected to be...

Added new metrics for tracking unexpected USB events (USB is expected to be disabled, yet USB activity is detected.)

Bug: 439009345
Test: atest, manual testing
Flag: android.security.aapm_feature_usb_data_protection
Change-Id: I2b3e6017cd34629d5c9b0b9c7d6622e52bef19e6