HLE: Fix hook flag for HBReload

[leoetlino]

The reload stub is at a fixed address (0x80001800) so its hook flag
should be HookFlag::Fixed.

Otherwise the hook is installed by HLE::PatchFixedFunctions but
immediately removed by HLE::PatchFunctions (which is called by
HLE::Reload right after PatchFixedFunctions).

Should fix https://bugs.dolphin-emu.org/issues/12716

[sepalani]

LGTM, tested with an empty main with both DOL and ELF files. It does fix the issue on my end.

[AdmiralCurtiss]

This makes Newer Super Mario Bros. Wii crash on the Wiimote warning screen.

30:01:045 Core\PowerPC\Jit64\Jit.cpp:835 W[PowerPC]: ISI exception at 0x00000000
30:01:049 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: ******** EXCEPTION OCCURRED! ********
30:01:051 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: FrameMemory:9008F0C0H
30:01:052 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: ---MainInfo---
30:01:053 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: CONTEXT:80359938H  (ISI EXCEPTION)
30:01:053 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: SRR0:   00000000H   SRR1:4000B032H
30:01:053 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: DSISR:  00000000H   DAR: 00000000H
30:01:054 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: ---EXCEPTION_INFO_TRACE---
30:01:054 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: -------------------------------- TRACE
30:01:054 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: Address:   BackChain   LR save
30:01:054 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: 8043FEA8:  00000000    00000000 
30:01:054 Core\HW\EXI\EXI_DeviceIPL.cpp:306 N[OSREPORT]: --------------------------------

e: Only when Cheats are globally disabled. Works fine if they are on.

e2: Seems like Newer injects some code at 0x80001800 which is broken by this patch:

dolphin/Source/Core/Core/HLE/HLE.cpp

Lines 88 to 94 in 05b4aec

	// HLE jump to loader (homebrew). Disabled when Gecko is active as it interferes with the code
	// handler
	if (!Config::Get(Config::MAIN_ENABLE_CHEATS))
	{
	Patch(0x80001800, "HBReload");
	Memory::CopyToEmu(0x00001804, "STUBHAXX", 8);
	}