libpam: update to 1.7.1

libpam: update to 1.7.1

Release notes:
 https://github.com/linux-pam/linux-pam/releases/tag/v1.5.3
 https://github.com/linux-pam/linux-pam/releases/tag/v1.6.0
 https://github.com/linux-pam/linux-pam/releases/tag/v1.6.1
 https://github.com/linux-pam/linux-pam/releases/tag/v1.7.0
 https://github.com/linux-pam/linux-pam/releases/tag/v1.7.1

Adapt Makefile to use meson and removed patch relating to configure.

Build system: x86/64
Build-tested: x86/64-glibc
Run-tested: x86/64-glibc

Signed-off-by: John Audia <[email protected]>