nt36xxx/ft8719: Fix snprintf warnings

Fixes the following clang warnings:

../drivers/input/touchscreen/nt36xxx_spi_c3j/nt36xxx_mp_ctrlram.c:1289:3: warning: 'snprintf' size argument is too large; destination buffer has size 32, but size argu
ment is 4096 [-Wfortify-source]
                snprintf(mpcriteria, PAGE_SIZE, "novatek-mp-criteria-%04X", ts->nvt_pid);
                ^
../drivers/input/touchscreen/nt36xxx_spi_c3j/nt36xxx_mp_ctrlram.c:1487:3: warning: 'snprintf' size argument is too large; destination buffer has size 32, but size argu
ment is 4096 [-Wfortify-source]
                snprintf(mpcriteria, PAGE_SIZE, "novatek-mp-criteria-%04X", ts->nvt_pid);
                ^

../drivers/input/touchscreen/ft8719_spi_c3j/focaltech_ex_fun.c:165:3: warning: 'snprintf' size argument is too large; destination buffer has size 25, but size argument
 is 4096 [-Wfortify-source]
                snprintf(tmp, PAGE_SIZE, "%s", writebuf + 1);
                ^
../drivers/input/touchscreen/ft8719_spi_c3j/focaltech_ex_fun.c:887:2: warning: 'snprintf' size argument is too large; destination buffer has size 128, but size argumen
t is 4096 [-Wfortify-source]
        snprintf(fwname, PAGE_SIZE, "%s", buf);
        ^
../drivers/input/touchscreen/ft8719_spi_c3j/focaltech_ex_fun.c:917:2: warning: 'snprintf' size argument is too large; destination buffer has size 128, but size argument is 4096 [-Wfortify-source]
        snprintf(fwname, PAGE_SIZE, "%s", buf);
        ^
  CC      drivers/mmc/core/host.o

../drivers/input/touchscreen/ft8719_spi_c3j/focaltech_test/focaltech_test_ini.c:739:4: e
rror: 'snprintf' size argument is too large; destination buffer has size 50, but size ar
gument is 512 [-Werror,-Wfortify-source]
                        snprintf(str, MAX_KEYWORD_VALUE_LEN, "InvalidNode[%d][%d]", i, j
);
                        ^
../drivers/input/touchscreen/ft8719_spi_c3j/focaltech_test/focaltech_test_ini.c:752:4: e
rror: 'snprintf' size argument is too large; destination buffer has size 50, but size ar
gument is 512 [-Werror,-Wfortify-source]
                        snprintf(str, MAX_KEYWORD_VALUE_LEN, "InvalidNodeS[%d][%d]", i,
j);
                        ^

Change-Id: Ieb3331a226cb6e183aaac2f22e7e8dccf27af7fc
Signed-off-by: Khusika Dhamar Gusti <khusikadhamar@gmail.com>
Signed-off-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
Signed-off-by: danascape <danascape@gmail.com>