Set PRODUCT_SHIPPING_API_LEVEL in module_*

This setting doesn't really make sense for unbundled builds but does
have the side-effect of turning on "full treble", which in turn is used
by some modules (libhidlbase) to conditionally use some particular -D
when compiling. The media.swcodec does not work without this define.

Bug: 185759877
Bug: 185789027
Test: compare media.swcodec apex build with module_arm64 and aosp_arm64
Change-Id: I1ebeb5f37816d8576a00ab7553cb4e9e1cab8cfa