imx: Use 'const char', not 'char const'

'char const' means the same thing as 'const char', but we
use the former in only a handful of places and we use the
latter over six thousand times. Switch the imx reg_name()
functions to bring them in line with everything else.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/misc/imx25_ccm.c

@@ -27,7 +27,7 @@
         } \
     } while (0)
 
-static char const *imx25_ccm_reg_name(uint32_t reg)
+static const char *imx25_ccm_reg_name(uint32_t reg)
 {
     static char unknown[20];
 

hw/misc/imx31_ccm.c

@@ -29,7 +29,7 @@
         } \
     } while (0)
 
-static char const *imx31_ccm_reg_name(uint32_t reg)
+static const char *imx31_ccm_reg_name(uint32_t reg)
 {
     static char unknown[20];
 

hw/misc/imx6_ccm.c

@@ -26,7 +26,7 @@
         } \
     } while (0)
 
-static char const *imx6_ccm_reg_name(uint32_t reg)
+static const char *imx6_ccm_reg_name(uint32_t reg)
 {
     static char unknown[20];
 
@@ -99,7 +99,7 @@ static char const *imx6_ccm_reg_name(uint32_t reg)
     }
 }
 
-static char const *imx6_analog_reg_name(uint32_t reg)
+static const char *imx6_analog_reg_name(uint32_t reg)
 {
     static char unknown[20];
 

hw/misc/imx6_src.c

@@ -27,7 +27,7 @@
         } \
     } while (0)
 
-static char const *imx6_src_reg_name(uint32_t reg)
+static const char *imx6_src_reg_name(uint32_t reg)
 {
     static char unknown[20];
 

hw/ssi/imx_spi.c

@@ -25,7 +25,7 @@
         } \
     } while (0)
 
-static char const *imx_spi_reg_name(uint32_t reg)
+static const char *imx_spi_reg_name(uint32_t reg)
 {
     static char unknown[20];
 

hw/timer/imx_epit.c

@@ -30,7 +30,7 @@
         } \
     } while (0)
 
-static char const *imx_epit_reg_name(uint32_t reg)
+static const char *imx_epit_reg_name(uint32_t reg)
 {
     switch (reg) {
     case 0:

hw/timer/imx_gpt.c

@@ -29,7 +29,7 @@
         } \
     } while (0)
 
-static char const *imx_gpt_reg_name(uint32_t reg)
+static const char *imx_gpt_reg_name(uint32_t reg)
 {
     switch (reg) {
     case 0: