Fix CPP version bound to include GHC 9.1

This is so it is true for the dev versions of GHC leading up to 9.2, and
needed so we can bump the minimum alex version prior to release.

Author: Ericson2314

templates/GenericTemplate.hs

@@ -12,7 +12,7 @@
 #define ALEX_IF_GHC_GT_500 #if __GLASGOW_HASKELL__ > 500
 #define ALEX_IF_GHC_LT_503 #if __GLASGOW_HASKELL__ < 503
 #define ALEX_IF_GHC_GT_706 #if __GLASGOW_HASKELL__ > 706
-#define ALEX_IF_GHC_GT_901 #if __GLASGOW_HASKELL__ > 901
+#define ALEX_IF_GHC_GE_901 #if __GLASGOW_HASKELL__ >= 901
 #define ALEX_ELIF_GHC_500 #elif __GLASGOW_HASKELL__ == 500
 #define ALEX_IF_BIGENDIAN #ifdef WORDS_BIGENDIAN
 #define ALEX_ELSE #else
@@ -68,7 +68,7 @@ ALEX_IF_BIGENDIAN
         low  = int2Word# (ord# (indexCharOffAddr# arr off'))
         off' = off *# 2#
 ALEX_ELSE
-ALEX_IF_GHC_GT_901
+ALEX_IF_GHC_GE_901
   int16ToInt#
 ALEX_ENDIF
     (indexInt16OffAddr# arr off)
@@ -93,7 +93,7 @@ ALEX_IF_BIGENDIAN
    b0   = int2Word# (ord# (indexCharOffAddr# arr off'))
    off' = off *# 4#
 ALEX_ELSE
-ALEX_IF_GHC_GT_901
+ALEX_IF_GHC_GE_901
   int32ToInt#
 ALEX_ENDIF
     (indexInt32OffAddr# arr off)