emulator: update EGL emulation library path

Change it from system/ to vendor/, due to
treble requirement.

Test: build sdk_phone_x86-eng, boot emulator
and surfaceflinger should not complain missing
emulation library and emulator should boot to
homescreen.

Change-Id: I08c5ac22358e464c5522deef93cd40ec3bc508c9
Merged-In: I08c5ac22358e464c5522deef93cd40ec3bc508c9
1 file changed