Fix keypad mode and cursor mode

Keypad mode is used for detecting when keys in the auxiliary keypad are
pressed, while cursor mode is used for detecting when a cursor is pressed,
but they are different modes.

St was mixing both modes and DECPAM and DECPNM modified the cursor mode, and
this was incorrect.
---
 st.c    |    5 +++--
 st.info |    4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

st.info

@@ -89,7 +89,7 @@ st| simpleterm,
 	ritm=\E[23m,
 	rmacs=\E(B,
 	rmcup=\E[?1049l,
-#	rmkx=\E>,
+	rmkx=\E[?1l\E>,
 	rmso=\E[23m,
 	rmul=\E[m,
 	rs1=\Ec,
@@ -104,7 +104,7 @@ st| simpleterm,
 	sitm=\E[3m,
 	smacs=\E(0,
 	smcup=\E[?1049h,
-#	smkx=\E=,
+	smkx=\E[?1h\E=,
 	smso=\E[3m,
 	smul=\E[4m,
 	tbc=\E[3g,