Page size alignment - ignore 32-bit.

For devices with PRODUCT_SHIPPING_API_LEVEL >= 36,
if they are 32-bit + 64-bit, this test will create
a build error.

Instead, we're only enforcing the page alignment at
build time for 64-bit libraries.

We could track 32-bit page size or enforce them to be
4096. I would expect such a change to catch no issues,
but it may also tag a large number of 32-bit firmware
and other prebuilts. We also don't care about these
binaries for the 16 KB page size project.

So ignore 32-bit page sizes here.

Bug: 383003132
Test: build
Change-Id: I577fb78e3a968ceda4c071c5a12baaf8318ca479