sys/amd64/amd64/pmap.c -- missing include

[Thomas Hurst]

Could someone pop #include "opt_pmap.h" into sys/amd64/amd64/pmap.c so
setting PMAP_SHPGPERPROC in kernel config actually has an effect on
amd64?

This will close conf/94509, and it'd be nice to have it in 6.1.

-- 
Thomas 'Freaky' Hurst
    http://hur.st/