package/erofs-utils: add patch to resolve PAGE_SIZE redefinition

package/erofs-utils: add patch to resolve PAGE_SIZE redefinition

This patch resolves PAGE_SIZE redefinition reported by autobuilders,
with toolchains using musl, on x86 (32- or 64-bit) platforms.

Fixes:
  - http://autobuild.buildroot.net/results/340b98caa45bafd43f109002be9da59ba7f6d971
  - http://autobuild.buildroot.net/results/42cd24535ab38cb9b416b730a034a1dbe3293bf5
  - http://autobuild.buildroot.net/results/260cdb3203e9141e674f38a2acd127d10320f8fa

Signed-off-by: Gao Xiang <hsiangkao@aol.com>
[yann.morin.1998@free.fr:
  - update commit log with details about conditions
  - add two autobuilder references
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>