Language and MC fix

[KrahJohlito]

Pull Request checklist

Note: these are not necessarily requirements

• I reformatted the code with clang-format
• I checked to make sure my submission worked
• I am the author of submission or have permission from the original author
• Requires update of the PS2SDK
• Requires update of the gsKit
• Others (please specify below)

Pull Request description

fixes #321 as seen here the first call to mcGetInfo() returns a value of -1 if a formatted mc is found.

Languages were freeing based on number of valid entries for the newly selected language rather than the one being freed.

[rickgaiser]

Calling mcSync after calling mcGetInfo should return (copied from ps2sdk):

 * mcSync result:	 0 = same card as last getInfo call
 *					-1 = formatted card inserted since last getInfo call
 *					-2 = unformatted card inserted since last getInfo call
 *					< -2 = memcard access error (could be due to accessing psx memcard)

So checking for -1 seems good, but what happens the second time the mc card is checked? Does it then return 0 (same card)?

[KrahJohlito]

Yea it should return 0 but this shouldn't happen as we would already have an mcID at this point and just pass through the function https://github.com/ps2homebrew/Open-PS2-Loader/blob/master/src/util.c#L48

The second call to mcGetInfo() immediately after is checking the other slot so on first call this would also return -1 even if the first card already did as its a new card.