tpm: fix coding style

Fix coding style in one instance.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/tpm/tpm_tis.c

diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 4b6d601..b8235d5 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -842,7 +842,7 @@
                 (tis->loc[locty].sts & TPM_TIS_STS_EXPECT)) {
                 /* we have a packet length - see if we have all of it */
 #ifdef RAISE_STS_IRQ
-                bool needIrq = !(tis->loc[locty].sts & TPM_TIS_STS_VALID);
+                bool need_irq = !(tis->loc[locty].sts & TPM_TIS_STS_VALID);
 #endif
                 len = tpm_tis_get_size_from_buffer(&tis->loc[locty].w_buffer);
                 if (len > tis->loc[locty].w_offset) {
@@ -853,7 +853,7 @@
                     tpm_tis_sts_set(&tis->loc[locty], TPM_TIS_STS_VALID);
                 }
 #ifdef RAISE_STS_IRQ
-                if (needIrq) {
+                if (need_irq) {
                     tpm_tis_raise_irq(s, locty, TPM_TIS_INT_STS_VALID);
                 }
 #endif