Add AM62L chip and 373-ball footprint

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Summary

• add the production AM62L32BOGHAANBR dual-core 1.25 GHz AM62L device
• implement the complete ANB0373A 373-ball FCCSP BGA footprint at 0.5 mm pitch with 0.3 mm lands
• include the full TI pin map, DSI lanes, and DPI/VOUT0 aliases used with an external HDMI bridge
• expose the family-level AM62L wrapper and exact-part export
• document the new chip and footprint variant

Why

The TI library did not contain the AM62L application processor. This adds the dual Cortex-A53 variant and its package so it can be used directly in tscircuit designs.

Repeated multiplexed signal names are ball-qualified when they appear on multiple physical balls. tscircuit treats shared aliases as internal electrical connections, so qualification prevents unrelated selectable mux pins from being shorted while preserving the exact datasheet signal table in the source definition.

Validation

• TypeScript typecheck passed
• formatting and git diff --check passed
• all 373 source ball definitions matched TI datasheet Table 5-1
• runtime render produced 373 pads and 373 ports
• runtime render produced zero internal connections and zero circuit errors
• independent geometry, pin-map/display, and integration audits passed