Fix PIR mask for POWER9
Fix typo in PIR mask for POWER9. Fixes booting multi-chip.
#define MSR_LE PPC_BIT(63) /* Little Endian */
/* PIR */
-#define SPR_PIR_P9_MASK 0x07ff /* Mask of implemented bits */
+#define SPR_PIR_P9_MASK 0x7fff /* Mask of implemented bits */
#define SPR_PIR_P8_MASK 0x1fff /* Mask of implemented bits */
#define SPR_PIR_P7_MASK 0x03ff /* Mask of implemented bits */
