Add description about command that read/write locality selection.

Signed-off-by:Xiaokai Wang <xiaokai.wang@intel.com>

diff --git a/man/man8/tpm_nvdefine.pod b/man/man8/tpm_nvdefine.pod
index c6df795..b779aa5 100644
--- a/man/man8/tpm_nvdefine.pod
+++ b/man/man8/tpm_nvdefine.pod
@@ -74,6 +74,18 @@ To select the NVRAM area with index 0x100, the command line parameter should be
 The size of the NVRAM area.
 The parameter must either be a decimal number or a hexadecimal number starting with '0x'.
 
+=item B<-R, --rlv>
+
+read locality value:uint8.there are 5 localities:0~4.
+for example,TPM_LOC_ZERO=0x1 TPM_LOC_ONE=0x2 TPM_LOC_TWO=0x4 TPM_LOC_THREE=0x8
+TPM_LOC_FOUR=0x10 TPM_LOC_ALL=0x1f.
+
+=item B<-W, --wlv>
+
+read locality value:uint8.there are 5 localities:0~4.
+for example,TPM_LOC_ZERO=0x1 TPM_LOC_ONE=0x2 TPM_LOC_TWO=0x4 TPM_LOC_THREE=0x8
+TPM_LOC_FOUR=0x10 TPM_LOC_ALL=0x1f.
+
 =item B<-p, --permissions>
 
 The access permissions associated with the NVRAM area.