hal: legacy: remove conflicting PAGESIZE definition

The PAGESIZE definition is typically used in POSIX systems
as a measure of virtual memory granularity. In the stm32 HAL
context it was used as a synonym for FLASH_PAGE_SIZE which
might not be as conventional.

Remove the conflicting definition.

Signed-off-by: Chris Friedt <cfriedt@meta.com>
20 files changed