mediaman: This commit corrects the sceUmd_040A7090() function in src/mediaman.c. Previously, it was using wrong error code values (which have also been fixed in this commit) and one error code check was missing. In addition, several spelling mistakes introduced with the previous mediaman commit were corrected.

include/common/errors.h: As noted above, several error code defines were corrected and a 1.50 mistake-error-code list has been added.