Fix sceNpManager callback regression

[Farseer2]

Just reverse one of #2894 changes. As seen in Midnight Club: LA, the callback isn't initially called to notify the network status.
Should fix the regression of GTA 4, 5 and MC:LA

Thanks to Kravicka for notifying for spotting the regression and tracking it down

[kamer1337]

fixed regression in Tony Hawk's Pro Skater HD

[Kravickas]

We cant fully state that fix worked because there is another regression in GTA 4, 5 and MC:LA and skate 3
#3448

[Zangetsu38]

I hope you can fix problem in Gal*Gun game with this function "sceNpManagerRegisterCallback"
game works if i set "else" condition, but break other game, need correctly implement "else if" condition, but i don't know why game call, enter in log

·W 0:00:24.256572 {PPU[0x1000000] Thread (main_thread) [0x00ac1898]} sceNp: sceNpManagerRegisterCallback(callback=*0x35a3c0, arg=*0x23920000)
·F 0:00:24.256760 {PPU[0x1000000] Thread (main_thread) [0x00229658]} MEM: Access violation writing location 0x0

[hcorion]

Please rebase with current master, Neko's fs fixes have been merged, so the GTA 4/5 + Skate III regression should be fixed.