Defines starting with `s' in pexpert/pexpert/ppc

• SPLBIO pexpert/pexpert/ppc/protos.h:115
• SPLCLOCK pexpert/pexpert/ppc/protos.h:113
• SPLHIGH pexpert/pexpert/ppc/protos.h:111
• SPLIMP pexpert/pexpert/ppc/protos.h:116
• SPLLO pexpert/pexpert/ppc/protos.h:120
• SPL_LOWER_MASK pexpert/pexpert/ppc/protos.h:125
• SPLNET pexpert/pexpert/ppc/protos.h:118
• SPLOFF pexpert/pexpert/ppc/protos.h:109
• SPLPOWER pexpert/pexpert/ppc/protos.h:110
• SPLSCHED pexpert/pexpert/ppc/protos.h:112
• SPLSCLK pexpert/pexpert/ppc/protos.h:119
• SPLTTY pexpert/pexpert/ppc/protos.h:117
• SPLVM pexpert/pexpert/ppc/protos.h:114